Python Factorial Example

Python factorial example using recursion method as well as python inbuilt recursion function.

#Python factorial

#Create python factorial function using recursion where a function calls itself
def factorial_function(number):
    if number == 0:
        return 1
    else:
        return number * factorial_function(number - 1)


print("{} factorial is {}".format(4, factorial_function(4)))
print("{} factorial is {}".format(0, factorial_function(0)))

---------------------------------------------------------------------

#Output

4 factorial is 24
0 factorial is 1

#Below uses the python inbuilt factorial function
import math
print(math.factorial(4))
print(math.factorial(0))

----------------------------------------------------------------------------------------------
#Output
24
1