diff --git a/utils/calculate.ts b/utils/calculate.ts
index 49b8de8..8328e08 100644
--- a/utils/calculate.ts
+++ b/utils/calculate.ts
@@ -6,9 +6,10 @@ export const calculateTotalPageNum = (
     throw new Error('resultTotalNum must be positive or zero');
   if (resultNumPerPage <= 0)
     throw new Error('resultNumPerPage must be positive');
-  if (resultNumPerPage % 0 > 0)
+  if (!Number.isInteger(resultNumPerPage))
     throw new Error('resultNumPerPage must be integer');
-  if (resultTotalNum % 0 > 0) throw new Error('resultTotalNum must be integer');
+  if (!Number.isInteger(resultTotalNum))
+    throw new Error('resultTotalNum must be integer');
   return Math.floor((resultTotalNum - 1) / resultNumPerPage) + 1;
 };