diff --git a/tools/factorial.py b/tools/factorial.py
index 6b38b0d..6e45372 100644
--- a/tools/factorial.py
+++ b/tools/factorial.py
@@ -3,14 +3,12 @@
 # author: @persianflower
 # example: factorial "5" -> "120"
 
+import math
 
 def run(*args) -> str:
     # args[0] is the first argument, args[1] is the second, etc.
     # Example with two args: text = args[0], length = int(args[1])
     number = int(args[0])
-    fact=1
-
-    while number:
-        fact*=number
-        number-=1
+    fact = math.factorial(number)
     return str(fact)
+