On 09/22/09 12:10, Warp wrote:
>    4) By their nature, factorials tend to accumulate trailing zeroes. For
> example, 5! (120) has one trailing zero, 10! (3628800) has two trailing
> zeroes, 25! (15511210043330985984000000) has six trailing zeroes, etc.
>
>    Give a (non-recursive) mathematical function which, for an integer n,
> gives the number of trailing zeroes in n!.

	For a tougher problem, estimate the number of digits in n!

	(Well, easy if you know one certain piece of information...).

-- 
I think animal testing is a terrible idea. They get all nervous and give 
the wrong answers.

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