Factorial calculation by Iterative and Recursive methods

 

def factorial_iterative(num):

    fac = 1

    for i in range(num):        

        fac = fac*(i+1)

    return fac

def factorial_recursive(num):

    if num==0 or num==1:

        return 1

    else:

        return num * factorial_recursive(num-1)

num = int(input("Input your number: "))

print(factorial_iterative(num))

print(factorial_recursive(num))