Update find-factorial.md

Use Python's built-in factorial function

Author: starryknight64

snippets/python/math-and-numbers/find-factorial.md

@@ -3,13 +3,14 @@ title: Find Factorial
 description: Calculates the factorial of a number.
 author: dostonnabotov
 tags: python,math,factorial,utility
+contributors: starryknight64
 ---
 
 ```py
+import math
+
 def factorial(n):
-    if n == 0:
-        return 1
-    return n * factorial(n - 1)
+    return math.factorial(n)
 
 # Usage:
 print(factorial(5))  # Output: 120