factorial

snippets/factorial.md

@@ -6,10 +6,14 @@ Use recursion. If `num` is less than or equal to `1`, return `1`. Otherwise, ret
 
 ```python 
 
+
 def factorial(num):
     if not ((num >= 0) & (num % 1 == 0)):
         raise Exception(
             f"Number( {num} ) can't be floating point or negative ")
     return 1 if num == 0 else num * factorial(num - 1)
 
-```
+```
+``` python
+factorial(6) # 720
+```