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)