Challenge

Adam Jerome abj at novell.com
Fri Nov 20 13:40:11 MST 2009


Excellent point Alan. 

It just goes to show that there is no such thing as "base 10". 
Rather, what is commonly termed "base 10" is actually "base A". 
Think about it... 

-adam  

>>> Alan Young <alansyoungiii at gmail.com> 11/20/2009 1:18 PM >>>
On Fri, Nov 20, 2009 at 13:06, Sasha Pachev <sasha at asksasha.com> wrote:
> If you had a 64 bit number written down in hex, how could you quickly
> tell without the aid of any computational device, including pencil or
> paper if it is divisible by 15?
>
> How about 17?

By 15 do you mean 15 or F?
By 17 do you mean 17 or 11?
--
Alan

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