25*2^587585-1 (176883 digits)

Nice one Cruelty!

226005*2^263957-1 (79465 digits)

Thanks :smile:
I'm just trying not to stay far behind you and Kosmaj :showoff:

22932195*2^406996-1 (122526 digits)

(I have 2 machines on this - one started at 300k, the other at 400k.
Each machine found one pretty quick - 303k and this 406k. Hopefully
some of the gaps will fill in...)

2904473715*2^327844-1 (98701 digits)

247*2^952069-1 (286604 digits)

I started at n=400k for the low-weight k and hoped for 1 prime before
1M...it just made it :bounce:

Great news! Who's gonna find the first 300k digits prime?

[B]Larry[/B], congrats on a nice and big prime! :w00t: :cool: We are now 11th by score!

[B]Cruelty[/B]: Cruel to composites, gentle to primes! :smile:
Congrats on a nice k=25 prime!

Guess who's #10 :smile:
BTW: it will take me some time to find a TOP-3 RPS prime now :sad:

Time or luck. I reserved k=247 from n=400k back at the end of December.
It's a low-weight k so one machine was able to go from n=400k-1M in less
than 2 months.

How deep have you sieved your ranges for k=247, and what was the average number of candidates per 100k range of "n"? I'm just trying to compare it with my k=25, where I get 3800-4000 candidates per 100k range of "n" sieved till ~2T.