Practice makes perfect - Factorial

there is a overflow bug, which happens if you put a big enough number you will get an error:

"Unknown Error: 389127391237129313116116... (the number goes on)

I suspect that a part of the calculation overflows and ends up in there, I don't know if there is any security risk on the interpreter itself but I don't know where to report it (or even if I actually need to report it :P)


Could you present the code you are using.....