diff --git a/arrow-array/src/types.rs b/arrow-array/src/types.rs
index 7c7a5c81155..03ecef361b0 100644
--- a/arrow-array/src/types.rs
+++ b/arrow-array/src/types.rs
@@ -22,9 +22,9 @@ use crate::delta::shift_months;
 use crate::OffsetSizeTrait;
 use arrow_buffer::i256;
 use arrow_data::decimal::{
-    validate_decimal256_precision_with_lt_bytes, validate_decimal_precision,
-    DECIMAL128_MAX_PRECISION, DECIMAL128_MAX_SCALE, DECIMAL256_MAX_PRECISION,
-    DECIMAL256_MAX_SCALE, DECIMAL_DEFAULT_SCALE,
+    validate_decimal256_precision, validate_decimal_precision, DECIMAL128_MAX_PRECISION,
+    DECIMAL128_MAX_SCALE, DECIMAL256_MAX_PRECISION, DECIMAL256_MAX_SCALE,
+    DECIMAL_DEFAULT_SCALE,
 };
 use arrow_schema::{ArrowError, DataType, IntervalUnit, TimeUnit};
 use chrono::{Duration, NaiveDate};
@@ -554,7 +554,7 @@ impl DecimalType for Decimal256Type {
     }
 
     fn validate_decimal_precision(num: i256, precision: u8) -> Result<(), ArrowError> {
-        validate_decimal256_precision_with_lt_bytes(&num.to_le_bytes(), precision)
+        validate_decimal256_precision(num, precision)
     }
 }
 
diff --git a/arrow-data/src/decimal.rs b/arrow-data/src/decimal.rs
index 592a461ad5c..a6a08774941 100644
--- a/arrow-data/src/decimal.rs
+++ b/arrow-data/src/decimal.rs
@@ -15,628 +15,627 @@
 // specific language governing permissions and limitations
 // under the License.
 
+use arrow_buffer::i256;
 use arrow_schema::ArrowError;
-use num::BigInt;
-use std::cmp::Ordering;
 
 // MAX decimal256 value of little-endian format for each precision.
 // Each element is the max value of signed 256-bit integer for the specified precision which
 // is encoded to the 32-byte width format of little-endian.
-pub(crate) const MAX_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION: [[u8; 32]; 76] = [
-    [
+pub(crate) const MAX_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION: [i256; 76] = [
+    i256::from_le_bytes([
         9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         99, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         231, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         15, 39, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         159, 134, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         63, 66, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         127, 150, 152, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 224, 245, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 201, 154, 59, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 227, 11, 84, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 231, 118, 72, 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 15, 165, 212, 232, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 159, 114, 78, 24, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 63, 122, 16, 243, 90, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 127, 198, 164, 126, 141, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 192, 111, 242, 134, 35, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 137, 93, 120, 69, 99, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 99, 167, 179, 182, 224, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 231, 137, 4, 35, 199, 138, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 15, 99, 45, 94, 199, 107, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 159, 222, 197, 173, 201, 53, 54, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 63, 178, 186, 201, 224, 25, 30, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 127, 246, 74, 225, 199, 2, 45, 21, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 160, 237, 204, 206, 27, 194, 211, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 73, 72, 1, 20, 22, 149, 69, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 227, 210, 12, 200, 220, 210, 183, 82, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 231, 60, 128, 208, 159, 60, 46, 59, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 15, 97, 2, 37, 62, 94, 206, 79, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 159, 202, 23, 114, 109, 174, 15, 30, 67, 1, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 63, 234, 237, 116, 70, 208, 156, 44, 159, 12, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 127, 38, 75, 145, 192, 34, 32, 190, 55, 126, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 128, 239, 172, 133, 91, 65, 109, 45, 238, 4, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 9, 91, 193, 56, 147, 141, 68, 198, 77, 49, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 99, 142, 141, 55, 192, 135, 173, 190, 9, 237, 1, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 231, 143, 135, 43, 130, 77, 199, 114, 97, 66, 19, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 15, 159, 75, 179, 21, 7, 201, 123, 206, 151, 192, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 159, 54, 244, 0, 217, 70, 218, 213, 16, 238, 133, 7, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 63, 34, 138, 9, 122, 196, 134, 90, 168, 76, 59, 75, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 127, 86, 101, 95, 196, 172, 67, 137, 147, 254, 80, 240, 2, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 96, 245, 185, 171, 191, 164, 92, 195, 241, 41, 99, 29,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 201, 149, 67, 181, 124, 111, 158, 161, 113, 163, 223,
         37, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 227, 217, 163, 20, 223, 90, 48, 80, 112, 98, 188, 122,
         11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 231, 130, 102, 206, 182, 140, 227, 33, 99, 216, 91, 203,
         114, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 15, 29, 1, 16, 36, 127, 227, 82, 223, 115, 150, 241,
         123, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 159, 34, 11, 160, 104, 247, 226, 60, 185, 134, 224, 111,
         215, 44, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 63, 90, 111, 64, 22, 170, 221, 96, 60, 67, 197, 94, 106,
         192, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 127, 134, 89, 132, 222, 164, 168, 200, 91, 160, 180,
         179, 39, 132, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 64, 127, 43, 177, 112, 150, 214, 149, 67, 14, 5,
         141, 41, 175, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 137, 248, 178, 235, 102, 224, 97, 218, 163, 142,
         50, 130, 159, 215, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 99, 181, 253, 52, 5, 196, 210, 135, 102, 146, 249,
         21, 59, 108, 68, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 231, 21, 233, 17, 52, 168, 59, 78, 1, 184, 191,
         219, 78, 58, 172, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 15, 219, 26, 179, 8, 146, 84, 14, 13, 48, 125, 149,
         20, 71, 186, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 159, 142, 12, 255, 86, 180, 77, 143, 130, 224, 227,
         214, 205, 198, 70, 11, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 63, 146, 125, 246, 101, 11, 9, 153, 25, 197, 230,
         100, 10, 196, 195, 112, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 127, 182, 231, 160, 251, 113, 90, 250, 255, 178, 3,
         241, 103, 168, 165, 103, 104, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 32, 13, 73, 212, 115, 136, 199, 255, 253, 36,
         106, 15, 148, 120, 12, 20, 4, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 73, 131, 218, 74, 134, 84, 203, 253, 235, 113,
         37, 154, 200, 181, 124, 200, 40, 0, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 227, 32, 137, 236, 62, 77, 241, 233, 55, 115,
         118, 5, 214, 25, 223, 212, 151, 1, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 231, 72, 91, 61, 117, 4, 109, 35, 47, 128,
         160, 54, 92, 2, 183, 80, 238, 15, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 15, 217, 144, 101, 148, 44, 66, 98, 215, 1,
         69, 34, 154, 23, 38, 39, 79, 159, 0, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 159, 122, 168, 247, 203, 189, 149, 214, 105,
         18, 178, 86, 5, 236, 124, 135, 23, 57, 6, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 63, 202, 148, 172, 247, 105, 217, 97, 34, 184,
         244, 98, 53, 56, 225, 74, 235, 58, 62, 0, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 127, 230, 207, 189, 172, 35, 126, 210, 87, 49,
         143, 221, 21, 50, 204, 236, 48, 77, 110, 2, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 0, 31, 106, 191, 100, 237, 56, 110, 237,
         151, 167, 218, 244, 249, 63, 233, 3, 79, 24, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 9, 54, 37, 122, 239, 69, 57, 78, 70, 239,
         139, 138, 144, 195, 127, 28, 39, 22, 243, 0, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 99, 28, 116, 197, 90, 187, 60, 14, 191,
         88, 119, 105, 165, 163, 253, 28, 135, 221, 126, 9, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 231, 27, 137, 182, 139, 81, 95, 142, 118,
         119, 169, 30, 118, 100, 232, 33, 71, 167, 244, 94, 0, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 15, 23, 91, 33, 117, 47, 185, 143, 161,
         170, 158, 50, 157, 236, 19, 83, 199, 136, 142, 181, 3, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 159, 230, 142, 77, 147, 218, 59, 157, 79,
         170, 50, 250, 35, 62, 199, 62, 201, 87, 145, 23, 37, 0, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 63, 2, 149, 7, 193, 137, 86, 36, 28, 167,
         250, 197, 103, 109, 200, 115, 220, 109, 173, 235, 114, 1, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 127, 22, 210, 75, 138, 97, 97, 107, 25,
         135, 202, 187, 13, 70, 212, 133, 156, 74, 198, 52, 125, 14, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 255, 224, 52, 246, 102, 207, 205, 49,
         254, 70, 233, 85, 137, 188, 74, 58, 29, 234, 190, 15, 228, 144, 0, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 255, 201, 16, 158, 5, 26, 10, 242, 237,
         197, 28, 91, 93, 93, 235, 70, 36, 37, 117, 157, 232, 168, 5, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 255, 227, 167, 44, 56, 4, 101, 116, 75,
         187, 31, 143, 165, 165, 49, 197, 106, 115, 147, 38, 22, 153, 56, 0,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 255, 231, 142, 190, 49, 42, 242, 139,
         242, 80, 61, 151, 119, 120, 240, 179, 43, 130, 194, 129, 221, 250, 53, 2,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         255, 255, 255, 255, 255, 255, 255, 255, 255, 15, 149, 113, 241, 165, 117, 119,
         121, 41, 101, 232, 171, 180, 100, 7, 181, 21, 153, 17, 167, 204, 27, 22,
-    ],
+    ]),
 ];
 
 // MIN decimal256 value of little-endian format for each precision.
 // Each element is the min value of signed 256-bit integer for the specified precision which
 // is encoded to the 76-byte width format of little-endian.
-pub(crate) const MIN_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION: [[u8; 32]; 76] = [
-    [
+pub(crate) const MIN_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION: [i256; 76] = [
+    i256::from_le_bytes([
         247, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         157, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         25, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         241, 216, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         97, 121, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         193, 189, 240, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         129, 105, 103, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 31, 10, 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 54, 101, 196, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 28, 244, 171, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 24, 137, 183, 232, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 240, 90, 43, 23, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 96, 141, 177, 231, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 192, 133, 239, 12, 165, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 128, 57, 91, 129, 114, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 63, 144, 13, 121, 220, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 118, 162, 135, 186, 156, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 156, 88, 76, 73, 31, 242, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 24, 118, 251, 220, 56, 117, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 240, 156, 210, 161, 56, 148, 250, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 96, 33, 58, 82, 54, 202, 201, 255, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 192, 77, 69, 54, 31, 230, 225, 253, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 128, 9, 181, 30, 56, 253, 210, 234, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 95, 18, 51, 49, 228, 61, 44, 255, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 182, 183, 254, 235, 233, 106, 186, 247, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 28, 45, 243, 55, 35, 45, 72, 173, 255, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 24, 195, 127, 47, 96, 195, 209, 196, 252, 255, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 240, 158, 253, 218, 193, 161, 49, 176, 223, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 96, 53, 232, 141, 146, 81, 240, 225, 188, 254, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 192, 21, 18, 139, 185, 47, 99, 211, 96, 243, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 128, 217, 180, 110, 63, 221, 223, 65, 200, 129, 255, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 127, 16, 83, 122, 164, 190, 146, 210, 17, 251, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 246, 164, 62, 199, 108, 114, 187, 57, 178, 206, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 156, 113, 114, 200, 63, 120, 82, 65, 246, 18, 254, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 24, 112, 120, 212, 125, 178, 56, 141, 158, 189, 236, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 240, 96, 180, 76, 234, 248, 54, 132, 49, 104, 63, 255, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 96, 201, 11, 255, 38, 185, 37, 42, 239, 17, 122, 248, 255, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 192, 221, 117, 246, 133, 59, 121, 165, 87, 179, 196, 180, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 128, 169, 154, 160, 59, 83, 188, 118, 108, 1, 175, 15, 253, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 159, 10, 70, 84, 64, 91, 163, 60, 14, 214, 156, 226, 255, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 54, 106, 188, 74, 131, 144, 97, 94, 142, 92, 32, 218, 254, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 28, 38, 92, 235, 32, 165, 207, 175, 143, 157, 67, 133, 244, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 24, 125, 153, 49, 73, 115, 28, 222, 156, 39, 164, 52, 141, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 240, 226, 254, 239, 219, 128, 28, 173, 32, 140, 105, 14, 132, 251,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 96, 221, 244, 95, 151, 8, 29, 195, 70, 121, 31, 144, 40, 211, 255,
         255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 192, 165, 144, 191, 233, 85, 34, 159, 195, 188, 58, 161, 149, 63,
         254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 128, 121, 166, 123, 33, 91, 87, 55, 164, 95, 75, 76, 216, 123,
         238, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 191, 128, 212, 78, 143, 105, 41, 106, 188, 241, 250, 114, 214,
         80, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 118, 7, 77, 20, 153, 31, 158, 37, 92, 113, 205, 125, 96, 40,
         249, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 156, 74, 2, 203, 250, 59, 45, 120, 153, 109, 6, 234, 196, 147,
         187, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 24, 234, 22, 238, 203, 87, 196, 177, 254, 71, 64, 36, 177, 197,
         83, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 240, 36, 229, 76, 247, 109, 171, 241, 242, 207, 130, 106, 235,
         184, 69, 229, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 96, 113, 243, 0, 169, 75, 178, 112, 125, 31, 28, 41, 50, 57,
         185, 244, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 192, 109, 130, 9, 154, 244, 246, 102, 230, 58, 25, 155, 245,
         59, 60, 143, 245, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 128, 73, 24, 95, 4, 142, 165, 5, 0, 77, 252, 14, 152, 87, 90,
         152, 151, 255, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 223, 242, 182, 43, 140, 119, 56, 0, 2, 219, 149, 240, 107,
         135, 243, 235, 251, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 182, 124, 37, 181, 121, 171, 52, 2, 20, 142, 218, 101, 55,
         74, 131, 55, 215, 255, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 28, 223, 118, 19, 193, 178, 14, 22, 200, 140, 137, 250, 41,
         230, 32, 43, 104, 254, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 24, 183, 164, 194, 138, 251, 146, 220, 208, 127, 95, 201,
         163, 253, 72, 175, 17, 240, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 240, 38, 111, 154, 107, 211, 189, 157, 40, 254, 186, 221,
         101, 232, 217, 216, 176, 96, 255, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 96, 133, 87, 8, 52, 66, 106, 41, 150, 237, 77, 169, 250, 19,
         131, 120, 232, 198, 249, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 192, 53, 107, 83, 8, 150, 38, 158, 221, 71, 11, 157, 202,
         199, 30, 181, 20, 197, 193, 255, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 128, 25, 48, 66, 83, 220, 129, 45, 168, 206, 112, 34, 234,
         205, 51, 19, 207, 178, 145, 253, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 255, 224, 149, 64, 155, 18, 199, 145, 18, 104, 88, 37,
         11, 6, 192, 22, 252, 176, 231, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 246, 201, 218, 133, 16, 186, 198, 177, 185, 16, 116, 117,
         111, 60, 128, 227, 216, 233, 12, 255, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 156, 227, 139, 58, 165, 68, 195, 241, 64, 167, 136, 150,
         90, 92, 2, 227, 120, 34, 129, 246, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 24, 228, 118, 73, 116, 174, 160, 113, 137, 136, 86, 225,
         137, 155, 23, 222, 184, 88, 11, 161, 255, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 240, 232, 164, 222, 138, 208, 70, 112, 94, 85, 97, 205,
         98, 19, 236, 172, 56, 119, 113, 74, 252, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 96, 25, 113, 178, 108, 37, 196, 98, 176, 85, 205, 5, 220,
         193, 56, 193, 54, 168, 110, 232, 218, 255, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 192, 253, 106, 248, 62, 118, 169, 219, 227, 88, 5, 58,
         152, 146, 55, 140, 35, 146, 82, 20, 141, 254, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 128, 233, 45, 180, 117, 158, 158, 148, 230, 120, 53, 68,
         242, 185, 43, 122, 99, 181, 57, 203, 130, 241, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 0, 31, 203, 9, 153, 48, 50, 206, 1, 185, 22, 170, 118,
         67, 181, 197, 226, 21, 65, 240, 27, 111, 255, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 0, 54, 239, 97, 250, 229, 245, 13, 18, 58, 227, 164, 162,
         162, 20, 185, 219, 218, 138, 98, 23, 87, 250, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 0, 28, 88, 211, 199, 251, 154, 139, 180, 68, 224, 112,
         90, 90, 206, 58, 149, 140, 108, 217, 233, 102, 199, 255,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 0, 24, 113, 65, 206, 213, 13, 116, 13, 175, 194, 104,
         136, 135, 15, 76, 212, 125, 61, 126, 34, 5, 202, 253,
-    ],
-    [
+    ]),
+    i256::from_le_bytes([
         1, 0, 0, 0, 0, 0, 0, 0, 0, 240, 106, 142, 14, 90, 138, 136, 134, 214, 154, 23,
         84, 75, 155, 248, 74, 234, 102, 238, 88, 51, 228, 233,
-    ],
+    ]),
 ];
 
 /// `MAX_DECIMAL_FOR_EACH_PRECISION[p]` holds the maximum `i128` value
@@ -770,11 +769,11 @@ pub fn validate_decimal_precision(value: i128, precision: u8) -> Result<(), Arro
     }
 }
 
-/// Validates that the specified `byte_array` of little-endian format
-/// value can be properly interpreted as a Decimal256 number with precision `precision`
+/// Validates that the specified `i256` of value can be properly
+/// interpreted as a Decimal256 number with precision `precision`
 #[inline]
-pub fn validate_decimal256_precision_with_lt_bytes(
-    lt_value: &[u8],
+pub fn validate_decimal256_precision(
+    value: i256,
     precision: u8,
 ) -> Result<(), ArrowError> {
     if precision > DECIMAL256_MAX_PRECISION {
@@ -786,63 +785,17 @@ pub fn validate_decimal256_precision_with_lt_bytes(
     let max = MAX_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION[usize::from(precision) - 1];
     let min = MIN_DECIMAL_BYTES_FOR_LARGER_EACH_PRECISION[usize::from(precision) - 1];
 
-    if singed_cmp_le_bytes(lt_value, &max) == Ordering::Greater {
+    if value > max {
         Err(ArrowError::InvalidArgumentError(format!(
             "{:?} is too large to store in a Decimal256 of precision {}. Max is {:?}",
-            BigInt::from_signed_bytes_le(lt_value),
-            precision,
-            BigInt::from_signed_bytes_le(&max)
+            value, precision, max
         )))
-    } else if singed_cmp_le_bytes(lt_value, &min) == Ordering::Less {
+    } else if value < min {
         Err(ArrowError::InvalidArgumentError(format!(
             "{:?} is too small to store in a Decimal256 of precision {}. Min is {:?}",
-            BigInt::from_signed_bytes_le(lt_value),
-            precision,
-            BigInt::from_signed_bytes_le(&min)
+            value, precision, min
         )))
     } else {
         Ok(())
     }
 }
-
-// compare two signed integer which are encoded with little endian.
-// left bytes and right bytes must have the same length.
-#[inline]
-pub fn singed_cmp_le_bytes(left: &[u8], right: &[u8]) -> Ordering {
-    assert_eq!(
-        left.len(),
-        right.len(),
-        "Can't compare bytes array with different len: {}, {}",
-        left.len(),
-        right.len()
-    );
-    assert_ne!(left.len(), 0, "Can't compare bytes array of length 0");
-    let len = left.len();
-    // the sign bit is 1, the value is negative
-    let left_negative = left[len - 1] >= 0x80_u8;
-    let right_negative = right[len - 1] >= 0x80_u8;
-    if left_negative != right_negative {
-        return match left_negative {
-            true => {
-                // left is negative value
-                // right is positive value
-                Ordering::Less
-            }
-            false => Ordering::Greater,
-        };
-    }
-    for i in 0..len {
-        let l_byte = left[len - 1 - i];
-        let r_byte = right[len - 1 - i];
-        match l_byte.cmp(&r_byte) {
-            Ordering::Less => {
-                return Ordering::Less;
-            }
-            Ordering::Greater => {
-                return Ordering::Greater;
-            }
-            Ordering::Equal => {}
-        }
-    }
-    Ordering::Equal
-}