Factorial

def factorial(n):
    global fctrl
    fctrl=1
    while n>1:
        fctrl=fctrl*n
        n=n-1

n=int(input("ENTER A NUMBER TO FIND THE FACTORIAL OF : "))
factorial(n)
print("The factorial of",n,"is",fctrl)

input("PRESS ENTER TO END THE PROGRAM")