diff --git a/Maths/IsDivisible.js b/Maths/IsDivisible.js
index 072957e92..1cdb6137c 100644
--- a/Maths/IsDivisible.js
+++ b/Maths/IsDivisible.js
@@ -1,15 +1,15 @@
 // Checks if a number is divisible by another number.
 
-const isDivisible = (num1, num2) => {
-  if (isNaN(num1) || isNaN(num2) || num1 == null || num2 == null) {
-    return 'All parameters have to be numbers'
+export const isDivisible = (num1, num2) => {
+  if (!Number.isFinite(num1) || !Number.isFinite(num2)) {
+    throw new Error('All parameters have to be numbers')
   }
   if (num2 === 0) {
-    return 'Not possible to divide by zero'
+    return false
   }
   return num1 % num2 === 0
 }
 
 console.log(isDivisible(10, 5)) // returns true
 console.log(isDivisible(123498175, 5)) // returns true
-console.log(isDivisible(99, 5)) // returns false
+console.log(isDivisible(99, 5)) // returns false
\ No newline at end of file