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 2020-01-03, 20:46 #1365 Cruelty     May 2005 22×11×37 Posts status report S10 tested till n=2.7M R10 tested till n=2.13M
2020-02-03, 11:26   #1366
matzetoni

Feb 2019

2×47 Posts
S30 tested to n=800K

S30 is tested to n=800K, results for range n=700k-800k are attached. No prime found. Releasing this base.
Attached Files
 sierp-base30-700K-800K.zip (100.9 KB, 151 views)

2020-02-12, 18:54   #1367
masser

Jul 2003
Behind BB

3·587 Posts
R16 Update

R16 tested to n = 1000K = 1M. No primes found. Residues attached. Testing continues.
Attached Files
 R16_900K_res.txt (753.9 KB, 154 views)

2020-02-15, 00:00   #1368
MisterBitcoin

"Nuri, the dragon :P"
Jul 2016
Good old Germany

22·211 Posts

S25 reached n=350K, that was hecking much work! I found i prime, already reported, and i am going to release this base here. Results attached.
Attached Files
 S25_results.zip (1.45 MB, 150 views)

 2020-04-04, 00:24 #1369 Cruelty     May 2005 110010111002 Posts status report S10 tested till n=2.8M R10 tested till n=2.18M
2020-07-09, 21:36   #1370
masser

Jul 2003
Behind BB

110111000012 Posts
S16 update

S16 tested to n = 1000K = 1M. 1 prime found, as previously reported. Residues attached.
Attached Files
 S16_900K_res_p1.txt (716.1 KB, 131 views) S16_900K_res_p2.txt (697.4 KB, 128 views)

 2020-07-15, 14:25 #1371 Xentar     Sep 2006 BB16 Posts s19 tested till n=188k New primes: Code: 414046*19^185864+1 630804*19^187127+1
2020-07-18, 21:42   #1372
masser

Jul 2003
Behind BB

3·587 Posts

Quote:
 Originally Posted by masser I will reserve the RS16 sequences that are currently at n=750K; my plan is to sieve up to n=2M, but test up to n=1M.
I am un-reserving RS16 now. I have attached the sieve file (I believe it was sieved up to 6e15)
Attached Files
 sr2data.txt.gz (271.3 KB, 191 views)

 2020-08-25, 14:44 #1373 rebirther     Sep 2011 Germany 3·19·53 Posts R31 tested to n=3M (1-3M) 1 prime found, 1 remain Results emailed - Base released
 2020-09-19, 22:05 #1374 MisterBitcoin     "Nuri, the dragon :P" Jul 2016 Good old Germany 22·211 Posts I know Gary doenst like taking single k´s from larger Bases, but i do have an question about two k´s from S25. 101958*25^n+1 and 207544*25^n+1 have both an very low number of tests; each around 4,5k tests between n=350-1M; with an higher sieve limit even a few hundret less. I could get those down within a few months / weeks. But of course my aim is not to bring them up to 1M, only prime counts. If you agree i would take both til i have a prime.
2020-09-20, 08:55   #1375
gd_barnes

May 2007
Kansas; USA

1055710 Posts

Quote:
 Originally Posted by MisterBitcoin I know Gary doenst like taking single k´s from larger Bases, but i do have an question about two k´s from S25. 101958*25^n+1 and 207544*25^n+1 have both an very low number of tests; each around 4,5k tests between n=350-1M; with an higher sieve limit even a few hundred less. I could get those down within a few months / weeks. But of course my aim is not to bring them up to 1M, only prime counts. If you agree i would take both til i have a prime.
There are many bases with 2 k's remaining at n=300K or 400K. Why do you choose to take two k's only out of a base with so many k's remaining?

You say you will search them until you find a prime. What makes you think you would find a prime on them before you get bored with them? It is very likely that would happen. The chances of you finding a prime on them for n=350K-1M are very remote because of how low-weight they are.

I'll tell you what. Run a single test at n=770K (~65% of the n-range). See how long it takes. Multiply that by the number of tests that you have to get the total CPU time. Then divide that by your number of cores that you will be running on it 24 hours a day 7 days a week. Then report that time back here.

If you can honestly say that you will run all the cores that you reported here in the above calculation full time and you can provide a status report once a month I will reserve them for you.

The biggest problem that CRUS has is people reserving way more work than they realize. We've also had people reserve things "until they find a prime" not realizing how remote that chance is and how long the tests begin to take in rapid fashion.

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