Project Euler #20: Factorial Digit Sum

n! means n × (n − 1) × … × 3 × 2 × 1

Find the sum of the digits in the number 100!

Here is my solution in Python

import math
total = 0
foo = math.factorial(100)
while foo > 0:
	rem = foo % 10
	total += rem
	foo = (foo - rem)/10
print total