Tugger the SLUGger!SLUG Mailing List Archives

Re: [SLUG] c++... a bit OT


On Wed, 15 Nov 2000, James Wilkinson wrote:

> This one time, at band camp, alex060@xxxxxxxxxxxxxxxx said:
>
> >all primes end in either 1 3 7 or 9 except  2 and 5
>
> How about 39?  That's not prime :)  You need a better heuristic ;)

he said all primes end in either 1 3 7 or 9, not that all numbers ending 
in 1 3 7 or 9 are prime

--
 Damien