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• Jul 1, 2001
To: Alan Powell <powella@...>
From: Bill Krys <billkrys@...>
Date sent: Sat, 30 Jun 2001 06:16:28 -0700 (PDT)

> Dear Alan et al,
>
> can you find any for me that don't work for
> e=2(2^(n-k)+2^k)?

2*(2^(8-1)+2^1)-1 factor : 7
2*(2^(8-1)+2^1)+1 factor : 3
2*(2^(8-4)+2^4)-1 factor : 3
2*(2^(8-4)+2^4)+1 factor : 5
2*(2^(9-1)+2^1)-1 factor : 5
2*(2^(9-1)+2^1)+1 factor : 11
2*(2^(9-3)+2^3)-1 factor : 11
2*(2^(9-3)+2^3)+1 factor : 5
2*(2^(10-1)+2^1)-1 factor : 13
2*(2^(10-1)+2^1)+1 factor : 3
2*(2^(10-4)+2^4)-1 factor : 3
2*(2^(10-4)+2^4)+1 factor : 7

>
> > At 03:07 AM 6/30/01, you wrote:
> > >take a prime number (p), raise it to any power (n),
> > >make a rectangle out of that number (with sides
> > >p^(n-k) and p^k). Calculate the perimeter of that
> > >rectangle. Add or subtract 1. At least one of these
> > >will be a prime number ... I think. At any rate,
> > all
> > >the primes may be generated this way ... I think.
> >
> >
>
>
> =====
> Bill Krys
> Email: billkrys@...
> Toronto, Canada (currently: Beijing, China)
>
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Michael Hartley : Michael.Hartley@...