Write a python program to find factorial of a number ?

Factorial 

When we recursively multiply number incrementing from 1 to a given number then its called factorial of that number. We use the notation ! to denote factorial. 

Factorial of 5 = 5! = 5X4X3X2X1

Code

def findFactorial(num):

    try:

        a = int(num)

        value = a

        while a>1:            

            a = a-1

            value = value*a

            print(value)

        print("Factorial of {} is {}".format(num,value))

    except:

        print("You have not entered a number")

number = input("enter a number")

findFactorial(number)