diff --git a/Maths/IsDivisible.js b/Maths/IsDivisible.js
index 2d9083c56..62c9f2e0a 100644
--- a/Maths/IsDivisible.js
+++ b/Maths/IsDivisible.js
@@ -2,7 +2,7 @@
 
 export const isDivisible = (num1, num2) => {
   if (!Number.isFinite(num1) || !Number.isFinite(num2)) {
-    throw new TypeError('Expected a number')
+    throw new TypeError('Expected a valid real number')
   }
   if (num2 === 0) {
     return false