Quote:
Originally Posted by axn1
Aah! In that case, what I said earlier applies. The conjucture can be "trivially" shown to be false. (Of course, to find a prime x*2^5092031 is not trivial, but it is relatively straightforward).
Is there some conditions for this conjecture, like we should consider only the Riesel k's?

Hmmmmmmmm, my math education was cut short in the tenth grade, so even if you could prove it false, I probably wouldn't understand it. Unless of course you're claiming you can find an n that makes n*2^5092031 prime, in which case I would agree that the conjecture is false.
Do you believe you can find an n that causes n*2^5092031 to be prime?