Answers for "python function that returns the factorial of a number"

python calculate factorial

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

how to print factorial in python

#will output the factorial for an input

num = int(input("give a number:"))
new_num = num + 1

factorial = 1

# check if the number is negative, positive or zero
if num < 0:
   print("factorial does not exist")
elif num == 0:
   print("factorial of 0 is 1")
else:
   for i in range(1, new_num):
       factorial = factorial*i
   print("The factorial of" , num , "is" , factorial)