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Old 2020-01-03, 20:46   #1365
Cruelty
 
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S10 tested till n=2.7M
R10 tested till n=2.13M
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Old 2020-02-03, 11:26   #1366
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Default 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.
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File Type: zip sierp-base30-700K-800K.zip (100.9 KB, 151 views)
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Old 2020-02-12, 18:54   #1367
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Default R16 Update

R16 tested to n = 1000K = 1M. No primes found. Residues attached. Testing continues.
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File Type: txt R16_900K_res.txt (753.9 KB, 154 views)
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Old 2020-02-15, 00:00   #1368
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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.
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File Type: zip S25_results.zip (1.45 MB, 150 views)
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Old 2020-04-04, 00:24   #1369
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S10 tested till n=2.8M
R10 tested till n=2.18M
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Old 2020-07-09, 21:36   #1370
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Default S16 update

S16 tested to n = 1000K = 1M. 1 prime found, as previously reported. Residues attached.
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File Type: txt S16_900K_res_p1.txt (716.1 KB, 131 views)
File Type: txt S16_900K_res_p2.txt (697.4 KB, 128 views)
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Old 2020-07-15, 14:25   #1371
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s19 tested till n=188k

New primes:
Code:
414046*19^185864+1
630804*19^187127+1
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Old 2020-07-18, 21:42   #1372
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Quote:
Originally Posted by masser View Post
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)
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File Type: gz sr2data.txt.gz (271.3 KB, 191 views)
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Old 2020-08-25, 14:44   #1373
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R31 tested to n=3M (1-3M)

1 prime found, 1 remain

Results emailed - Base released
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Old 2020-09-19, 22:05   #1374
MisterBitcoin
 
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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.
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Old 2020-09-20, 08:55   #1375
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Quote:
Originally Posted by MisterBitcoin View Post
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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