diff --git a/bytes/equals.ts b/bytes/equals.ts
index 7e431f957..ab5dcda70 100644
--- a/bytes/equals.ts
+++ b/bytes/equals.ts
@@ -7,7 +7,6 @@
  * @param b second array to check equality
  */
 function equalsNaive(a: Uint8Array, b: Uint8Array): boolean {
-  if (a.length !== b.length) return false;
   for (let i = 0; i < b.length; i++) {
     if (a[i] !== b[i]) return false;
   }
@@ -20,7 +19,6 @@ function equalsNaive(a: Uint8Array, b: Uint8Array): boolean {
  * @param b second array to check equality
  */
 function equals32Bit(a: Uint8Array, b: Uint8Array): boolean {
-  if (a.length !== b.length) return false;
   const len = a.length;
   const compressable = Math.floor(len / 4);
   const compressedA = new Uint32Array(a.buffer, 0, compressable);
@@ -39,6 +37,8 @@ function equals32Bit(a: Uint8Array, b: Uint8Array): boolean {
  * @param b second array to check equality
  */
 export function equals(a: Uint8Array, b: Uint8Array): boolean {
-  if (a.length < 1000) return equalsNaive(a, b);
-  return equals32Bit(a, b);
+  if (a.length !== b.length) {
+    return false;
+  }
+  return a.length < 1000 ? equalsNaive(a, b) : equals32Bit(a, b);
 }
diff --git a/bytes/last_index_of_needle_test.ts b/bytes/last_index_of_needle_test.ts
index 03a95587c..2c50fdaa7 100644
--- a/bytes/last_index_of_needle_test.ts
+++ b/bytes/last_index_of_needle_test.ts
@@ -40,3 +40,20 @@ Deno.test("[bytes] lastIndexOfNeedle with start index 2", () => {
   );
   assertEquals(i, -1);
 });
+
+Deno.test("[bytes] lastIndexOfNeedle with start index greater than source index", () => {
+  const i = lastIndexOfNeedle(
+    new Uint8Array([0, 1, 2, 0, 1, 2]),
+    new Uint8Array([0, 1]),
+    7,
+  );
+  assertEquals(i, 3);
+});
+
+Deno.test("[bytes] lastIndexOfNeedle if needle doesn't exist within source", () => {
+  const i = lastIndexOfNeedle(
+    new Uint8Array([0, 1, 2, 0, 1, 2]),
+    new Uint8Array([2, 3]),
+  );
+  assertEquals(i, -1);
+});
diff --git a/bytes/repeat.ts b/bytes/repeat.ts
index eeeb2da44..285d9850c 100644
--- a/bytes/repeat.ts
+++ b/bytes/repeat.ts
@@ -22,13 +22,9 @@ export function repeat(source: Uint8Array, count: number): Uint8Array {
 
   if (count < 0) {
     throw new RangeError("bytes: negative repeat count");
-  } else if ((source.length * count) / count !== source.length) {
-    throw new Error("bytes: repeat count causes overflow");
   }
 
-  const int = Math.floor(count);
-
-  if (int !== count) {
+  if (!Number.isInteger(count)) {
     throw new Error("bytes: repeat count must be an integer");
   }