Got a KnC upgrade module that you don't need? Or a board that has a low hashrate because of disabled dies, so you want to get rid of it? PM me reasonable offers. Located in California.

Firstly, primecoin is based on Cunningham chains, not single primes (as someone already said).

Secondly, you could use Mills' constant to find primes... if you knew Mills' constant to arbitrary precision... but nobody does, since the only way to calculate Mills' constant is by finding a bunch of primes. =)

The 9 numbers 1574643694870716234768119109262250640648052155467238286652911336545168633619161 6303820985251295842020684640523576306336183730859560 * 2^n + 1, 0 <= n <= 8 are all actually prime (according to GMP-ECPP).

Now onto the ones from block 5355...

You're absolutely right. I'm in the process of checking all these primes with GMP-ECPP (http://gmp-ecpp.sourceforge.net/). I'd be really surprised if any were composite (because "probable prime" means 1 in a zillion chance of being composite), but it can't hurt to check. BTW, if anyone knows a faster primality certificate generator, I'd love to hear about it.

Ugh, sounds stupid.

You realize this thread is like two years old?

Selamat datang

I don't know why anyone would be giving away significant amounts of money, but in case someone is, send them to

1PABhLLyUdZ2iFYEnCnX3zXFbbPXMsxb4N

Insurance