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Topic: A little puzzle (fwd)
Replies: 12   Last Post: Aug 23, 2013 8:25 AM

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Leon Aigret

Posts: 31
Registered: 12/2/12
Re: A little puzzle (fwd)
Posted: Aug 20, 2013 8:56 AM
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On Mon, 19 Aug 2013 21:54:15 -0700, William Elliot <marsh@panix.com>
wrote:

>From alt.math
>
>These 12 numbers have something in common.
>
> 21
> 41
> 23
> 33
> 53
> 25
> 45
> 36
> 27
> 29
>201
>113
>100001
>
>What is it ?


The generic answer is 10.

Leon



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