[Tutor] Need help with Factorial algorithm using Python

[Chris Fuller]

I spent the day mulling over this problem, and then implemented my solution 
when I got home.  This is for the easier problem of 7**8 zeros:  On my linux 
box, running something around 2 GHz, my script runs for about two minutes and 
the answer is 23059225.  You can verify your code to that.  I checked that 
the answer was correct for 7**2, 7**3, and 7**4.

My script is only 25-30 lines long. It isn't too complicated.  The only place 
I used strings was when verifying the length of trailing zeros, not in the 
actual solution at all.

Cheers