Factorial of a Number using Loop

 

Factorial of a Number using Loop

num = int(input("Enter a number: "))

factorial = 1

if num < 0:

   print("factorial does not exist for negative numbers")

elif num == 0:

   print("The factorial of 0 is 1")

else:

   for i in range(1,num + 1):

       factorial = factorial*i

   print("The factorial of",num,"is",factorial)