Factorial with haskell is not working... in ruby it worked

What worked? You haven't completed the kata, and you're not supposed to calculate the factorial in any of the languages.

RTFM!

Hint: You're not meant to calculate the factorial. Find another way to find the number of zeros.

There's no way you calculated factorial of 1000 in ruby... Whatever the case, this isn't a kata issue.

Factorial with haskell is not working and always yield in timeout, while I tried the same in ruby it worked.