Is there anything geographically special about your old town?
On Fri, 17 Dec 1999, Vincent J. Mooney Jr. wrote:
> Also since the list is quite quiet, my old zip code of 21701 is a Mersenne
> prime.
>
> Are there any other zip codes that are Mersenne primes?
>
> I don't know how to look up
On 17 Dec 99, at 16:35, Gordon Bower wrote:
> Something strange happened, though. Version 19 slows down considerably
> more in response to my doing other low-demand things on my machine,
> reading email/web browsing/etc. Is this just in the nature of v19,
> something to do with the optimizations
An old book of mine gives without proof an example of Fibonacci Sequence
that countains no primes, but where U(1) and U(2) are co-prime.
The sequence was found by R. L. Graham.
Reference :
"A Fibonacci-like sequence of composite numbers",
R.L. Graham, Math. Mag. 37, 1964.
U(1) = 17867727019288026
I had to reload my hard drive.
Lost my exponent, exe, worktodo file
I was 2 weeks in
Would like to "give back" the number so we don't waste 6 weeks of the 2
month time limit.
How do I do this.
_
Unsubscribe & list info -- http://
At 04:50 PM 12/18/99 +0100, François Perruchaud wrote:
An old book of mine gives without proof an
example of Fibonacci Sequence
that countains no primes, but where U(1) and U(2) are co-prime.
The sequence was found by R. L. Graham.
Reference :
"A Fibonacci-like sequence of composite numbers",
R.L.
Hi folks
>U(1) = 1786772701928802632268715130455793
>U(2) = 1059683225053915111058165141686995
>U(N+2) = U(N+1) + U(N)
>I checked a few thousand terms, and they were all composite.
There is almost certainly a 'covering set' of divisors. In essence you need
to find a set of primes P and a modulus
