Reservations
 

Reserving the following 1kers to n=200K.

S353 S497

S290 is complete to n=50K

1 prime
74*290^26295+1

Attached are the results

S422 is complete to n=50K

1 prime:
31*422^33728+1

Attached are the results


Note:
Minor milestone all b≤500 with a ck≤100 have been tested to at least n=50K

[QUOTE]Minor milestone all b≤500 with a ck≤100 have been tested to at least n=50K [/QUOTE]

Nice job Mathew. There are no minor milestones. That was a lot of work. :beer:

S403 is now done to 25K and released. 52 k's are remaining.

Files and residues were emailed.

[QUOTE=Mathew;266235]Minor milestone all b≤500 with a ck≤100 have been tested to at least n=50K[/QUOTE]

I'll second that. Nice work! :bow:

S320
 

Sierpinski base 320 is complete to n=100k.

Two primes found:
[CODE]25*320^35754+1
8*320^52003+1[/CODE]

1 k-value remains (k=97).

Base released.

S294
 

Taking S294 out, hoping to extend from n=25k to n=100k. 3 k-values remain.

535*256^109243+1 is prime because 535*2^873944+1 is prime. That prime was found by PrimeGrid. That leaves 831 as the only k remaining for S256. Also note that since PrimeGrid has tested base 2 for k=831 to n=1000000 that it has tested k=831 for base 256 to the equivalent of n=125000.

Taking R256, specifically the 26 in the sieve file that have not been done to n=125000.

BTW, for the k that overlap NPLB, have those been exhaustively tested to their limits on that project? I was under the impression that NPLB had untested gaps.

[QUOTE=rogue;266507]Taking R256, specifically the 26 in the sieve file that have not been done to n=125000.

BTW, for the k that overlap NPLB, have those been exhaustively tested to their limits on that project? I was under the impression that NPLB had untested gaps.[/QUOTE]

NPLB only has non-top-5000 gaps for k=2000-3000. Everything else is filled in up to n>=1M (k<1400 by either NPLB or RPS) or n=~735K (k=1400-2000). Because there is a gap for k=2000-3000, I do not reflect NPLBs search range for those k's for base 256. The n=75K testing limit for the k's in that range is how far I tested R256 myself.