Bases 251-500 reservations/statuses/primes - Page 51

Siemelink · 2010-08-21, 13:59

Hi all,

I've developed Riesel base 327. The conjecture is 696 and I've managed to get the open k's down to: 38, 62, 204, 308, 346, 370, 458 and 664. My goal is to reach n - 25,000, currently n = 22,000.

Willem.

Mathew · 2010-08-21, 19:07

R446 is complete to n=25K

CK=74

6 k's remaining k=10,13,34,35,55,64

Attached are the results

gd_barnes · 2010-08-22, 07:02

S450 is complete to n=25K; only k=87 & 109 remain; highest prime 54*450^6981+1; base released.

Mathew · 2010-08-23, 03:35

R497 is complete to n=25K

CK=82

5 k's remain k=14,28,56,62,64

Attached are the results

Batalov · 2010-08-23, 19:02

Quote:

Originally Posted by gd_barnes

New bases S335 and S440 k=8 conjectures are complete to n=25K.

Only k=4 remains on both of them.

4*440⁵⁶⁰⁸⁶+1 is a GFN prime (of simple x²+1 variety) and S440 is proven.

Note that it was easier than could have been, because left in the sieve there were n=0(mod 4) which are Aurifeuillian composites and 2(mod 4) to be searched.

mdettweiler · 2010-08-23, 20:14

Quote:

Originally Posted by Batalov

4*440⁵⁶⁰⁸⁶+1 is a GFN prime (of simple x²+1 variety) and S440 is proven.

Quick question: if, say, I'm testing a base and k that can potentially produce a GFN, and I find a prime which is a GFN, will the top-5000 automatically label it as such when I submit it, or is that something I have to notice and specify myself?

Batalov · 2010-08-23, 21:32

You may want to ask Ian if he did that manually, or was that tag server assigned. He had one of these recently.

Mine is way too small. I got specifically interested in this very topic when Ian had his prime. Searched a few series, found nothing... (until now)

MyDogBuster · 2010-08-23, 22:27

Quote:

You may want to ask Ian if he did that manually, or was that tag server assigned.

It was assigned automatically by Dr. Caldwell's verification process. I didn't have a clue as to what it was.

MyDogBuster · 2010-08-24, 09:48

Quote:

4*44056086+1 is a GFN prime (of simple x2+1 variety) and S440 is proven.

Serge, can you post the test results for S440, just to keep the books up to date. Thanks

Batalov · 2010-08-24, 14:35

OK. I have about a dozen finished series, just haven't picked the time to send them all out. Will try to zip all data tonight.

Mathew · 2010-08-25, 00:48

R488 is complete to n=25K

CK=164

15 k's remain k=7,28,29,31,37,58,74,86,87,95,97,116,118,133,137

Results will be emailed

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2010-08-22, 07:02	#553
gd_barnes May 2007 Kansas; USA 3²×13×89 Posts	S450 is complete to n=25K; only k=87 & 109 remain; highest prime 54*450^6981+1; base released.

2010-08-23, 21:32	#557
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	You may want to ask Ian if he did that manually, or was that tag server assigned. He had one of these recently. Mine is way too small. I got specifically interested in this very topic when Ian had his prime. Searched a few series, found nothing... (until now)

2010-08-24, 14:35	#560
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	OK. I have about a dozen finished series, just haven't picked the time to send them all out. Will try to zip all data tonight.

2010-08-25, 00:48	#561
Mathew Nov 2009 15E₁₆ Posts	R488 is complete to n=25K CK=164 15 k's remain k=7,28,29,31,37,58,74,86,87,95,97,116,118,133,137 Results will be emailed