Question

How to calculate factorial of a number in Python

Answer 1

def factorial(n):
    fact = 1
    for i in range(2, n + 1):
        fact = fact * i
    return fact

n = 5
print(factorial(n))

n = 4
print(factorial(n))


'''
run:

120
24

'''

 

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Answer 2

import math

print(math.factorial(6))
print(math.factorial(5))
print(math.factorial(4))


'''
run:

720
120
24

'''

 

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