20200103, 20:46  #1365 
May 2005
2^{2}·11·37 Posts 
status report
S10 tested till n=2.7M
R10 tested till n=2.13M 
20200203, 11:26  #1366 
Feb 2019
5×19 Posts 
S30 tested to n=800K
S30 is tested to n=800K, results for range n=700k800k are attached. No prime found. Releasing this base.

20200212, 18:54  #1367 
Jul 2003
Behind BB
2^{2}·3·157 Posts 
R16 Update
R16 tested to n = 1000K = 1M. No primes found. Residues attached. Testing continues.

20200215, 00:00  #1368 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
2×5^{2}×17 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.

20200404, 00:24  #1369 
May 2005
11001011100_{2} Posts 
status report
S10 tested till n=2.8M
R10 tested till n=2.18M 
20200709, 21:36  #1370 
Jul 2003
Behind BB
2^{2}×3×157 Posts 
S16 update
S16 tested to n = 1000K = 1M. 1 prime found, as previously reported. Residues attached.

20200715, 14:25  #1371 
Sep 2006
Germany
2·5·19 Posts 
s19 tested till n=188k
New primes: Code:
414046*19^185864+1 630804*19^187127+1 
20200718, 21:42  #1372 
Jul 2003
Behind BB
2^{2}·3·157 Posts 
I am unreserving RS16 now. I have attached the sieve file (I believe it was sieved up to 6e15)

20200825, 14:44  #1373 
Sep 2011
Germany
3,121 Posts 
R31 tested to n=3M (13M)
1 prime found, 1 remain Results emailed  Base released 
20200919, 22:05  #1374 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
1522_{8} 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=3501M; 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. 
20200920, 08:55  #1375  
May 2007
Kansas; USA
2·23·233 Posts 
Quote:
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=350K1M are very remote because of how lowweight they are. I'll tell you what. Run a single test at n=770K (~65% of the nrange). 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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