Re: [PrimeNumbers] Please help....
- Dear idiot,
2KP+1 is an arithmetic progression whose elements have no common factor,
and so will always contain infinitely many primes, whatever P is.
PS Don't take offence to the dear idiot start, but if you're going to
ask for help by saying 'dear geeks', then you can probably expect such a
PPS See Dirichlet's theorem, in any good number theory book, for more
On Sun, Mar 07, 2004 at 08:00:17AM -0800, Shiv Nandan Singh wrote:
> Dear geeks ,
> Are there any primes P of any form such that 2*K*P + 1 is never prime
> for any positive value of K. Or to be specific does there exist any
> single prime P such that 2*KP + 1 is never prime for all K>0 .Or could
> you prove its inexistence....? Any light on the issue would be highly
> Shiv Nandan Singh
- Shiv Nandan Singh wrote:
> Are there any primes P of any form such that 2*K*P + 1 is never prime for2*P and 1 are relatively prime (whether P is prime or not).
> any positive value of K.
Then Dirichlet's theorem says there are always infinitely many primes.
Jens Kruse Andersen