Bases 251-500 reservations/statuses/primes - Page 73

MyDogBuster · 2011-07-06, 20:56

Reserving the following 1kers to n=200K.

S353 S497

Mathew · 2011-07-08, 19:09

S290 is complete to n=50K

1 prime
74*290^26295+1

Attached are the results

Mathew · 2011-07-12, 21:50

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

MyDogBuster · 2011-07-13, 00:26

Quote:

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

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

Batalov · 2011-07-13, 05:48

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

Files and residues were emailed.

gd_barnes · 2011-07-13, 06:30

Quote:

Originally Posted by Mathew

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

I'll second that. Nice work!

paleseptember · 2011-07-15, 06:33

Sierpinski base 320 is complete to n=100k.

Two primes found:

Code:

25*320^35754+1
8*320^52003+1

1 k-value remains (k=97).

Base released.

paleseptember · 2011-07-15, 06:42

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

rogue · 2011-07-15, 14:10

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.

rogue · 2011-07-15, 16:09

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.

gd_barnes · 2011-07-15, 18:16

Quote:

Originally Posted by rogue

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.

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.

2011-07-06, 20:56	#793
MyDogBuster May 2008 Wilmington, DE 2²×23×31 Posts	Reservations Reserving the following 1kers to n=200K. S353 S497

2011-07-15, 06:33	#799
paleseptember Jun 2008 Wollongong, .au 3×61 Posts	S320 Sierpinski base 320 is complete to n=100k. Two primes found: Code: 25320^35754+1 8320^52003+1 1 k-value remains (k=97). Base released.

2011-07-15, 06:42	#800
paleseptember Jun 2008 Wollongong, .au 3·61 Posts	S294 Taking S294 out, hoping to extend from n=25k to n=100k. 3 k-values remain.

2011-07-15, 16:09	#802
rogue "Mark" Apr 2003 Between here and the 2²×7×227 Posts	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. Last fiddled with by rogue on 2011-07-15 at 16:19

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2011-07-13, 05:48	#797
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	S403 is now done to 25K and released. 52 k's are remaining. Files and residues were emailed.

2011-07-15, 14:10	#801
rogue "Mark" Apr 2003 Between here and the 1100011010100₂ Posts	535256^109243+1 is prime because 5352^873944+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.