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Re: count zeros in a number -> Clip[x] = ?

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  • Subject: [mg121909] Re: count zeros in a number -> Clip[x] = ?
  • From: "Dr. Wolfgang Hintze" <weh at>
  • Date: Thu, 6 Oct 2011 04:23:42 -0400 (EDT)
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  • References: <j69104$rda$> <j6e5ti$kbr$> <j6h3kn$74t$>

What about setting up a regular column "esoteric of the week" naming 
functions that are rarely used ?

I would start with


which I (shame on me) didn't know until this evening. Did you?


"Richard Fateman" <fateman at> schrieb im Newsbeitrag 
news:j6h3kn$74t$1 at
> On 10/3/2011 10:34 PM, Stefan Salanski wrote:
>> All these solutions are very interesting, and they all work, but I
>> believe the simplest solution is actually a built in function,
>> specifically: IntegerExponent[].
>> IntegerExponent[n,b] returns the highest power of b which divides n,
>> which for b=10, is the number of trailing zeroes of n.
> why yes, all you need is one esoteric function.
> Proof that it is esoteric?  All the previous posters (me too) were
> unaware of it. And presumably all the people who read the question 
> and
> did not post anything ...
> The first example in the documentation illustrates exactly this 
> usage.

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