[XRM] So... How we extract the new primes from the Primecoin Blockchain?

[Sunny King]

1CC is the chain below center numbers, 2CC is the chain above center numbers.

So you should substract 1 from the center numbers (keep doubling from origin) for 1CC.

http://en.wikipedia.org/wiki/Cunningham_chain

If I'm reading this correctly its actually the other way around.

Cunningham Chain of the first type:

Yes, but that's not contradictory.

(n-1) * 2 + 1 = (2n - 1)

From center number you substract one.
From previous prime number you double and add one.

[Petr1fied]

1CC is the chain below center numbers, 2CC is the chain above center numbers.

So you should substract 1 from the center numbers (keep doubling from origin) for 1CC.

OK got it, I was going in the wrong direction.

[Petr1fied]

I think I have it working as it should in Block Crawler now:

http://primeblock.kicks-ass.net/block_crawler.php

[rethaw]

I think I have it working as it should in Block Crawler now:

http://primeblock.kicks-ass.net/block_crawler.php

Neat!

[defaced]

Now i see.

[sevenseals]

what is prime calculation good for?