diff --git a/Maths/Factorial.js b/Maths/Factorial.js
index 29b416a67e..b68e6e27df 100644
--- a/Maths/Factorial.js
+++ b/Maths/Factorial.js
@@ -21,11 +21,8 @@ const calcFactorial = (num) => {
 if (num === 0) {
 return 'The factorial of 0 is 1.'
 }
- if (num < 0) { - return 'Sorry, factorial does not exist for negative numbers.' - } - if (!num) { - return 'Sorry, factorial does not exist for null or undefined numbers.' + if (!num) &#124;&#124; (num < 0) { + return 'Sorry, factorial does not exist for null or undefined or negative numbers.' } if (num> 0) {
 const range = calcRange(num)
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