# Python 3 program to find factorial of given number
def factorial(n):
if n < 0:
return 0
elif n == 0 or n == 1:
return 1
else:
fact = 1
while(n > 1):
fact *= n
n -= 1
return fact
num = 5;
print("Factorial of",num,"is",
factorial(num))
OUTPUT:
Factorial of 5 is 120