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  1. def factorial(n):
  2.   def f(n):
  3.         if n == 0:
  4.           return 1
  5.         else:
  6.           return n * f(n - 1)
  7.  
  8.   if isinstance(n, int) and n >= 0:
  9.         return f(n)
  10.   else:
  11.         return None
  12.  
  13. print(factorial(100))
Success #stdin #stdout 0.02s 5744KB
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Standard input is empty
stdout
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93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000
https://ideone.com/kXN1i
language:
Python 3 (python  3.9.5)
created:
11 years ago
visibility:
public

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