Sierp base 9 K=2036
 

Completed my range 100K-200K. No prime.

Sierp base 9 K=2036
 

Reserving more and taking Sierp base 9 to 300k (200k-300k)

Riesel base 28 k=8991
 

Found PRP with PRP, proven with PFGW:

8991*28^16799-1 is prime!

Don't you just love it when you can find a prime for a k within a couple hours of reserving it? :grin:

Results file is attached. :smile:

Taking Sierpinski base 11, k=958

Taking Riesel base 13, k=288

Sierp base 19 complete for all k's to n=5K. 2155 k's remaining.

Continuing to at least n=10K on all k's.

1873*30^50427-1 is prime! This is one of the lightweights, so it is good to find a prime for it.

[QUOTE=tnerual;127670]k*31^n+1 tested up to n=5000 ... 3036 k remaining

i continue:smile:[/QUOTE]

2691 k remaining at n=6000

i continue :uncwilly:

Sierp base 19 now tested to n=7550. Since n=5K, 358 more k's were eliminated. 1797 k's now remain. All k's remaining are shown on the Sierp base 19 reservations web page. If you haven't taken a look at it, it looks kind of funny to see so many numbers on one page. lol

Continuing on to n=10K.

All base 30 k are tested to 60,000. Nothing new to report.

Still in progress..

Sierp base 17: n ~ 120k
Sierp base 18: n ~ 180k

No primes :(

[quote=Xentar;129841]Still in progress..

Sierp base 17: n ~ 120k
Sierp base 18: n ~ 180k

No primes :([/quote]

Whew! Those are TOUGH bases to crack! Good luck and thanks for the update.