20151225, 06:25  #23 
I moo ablest echo power!
May 2013
11100001101_{2} Posts 
S/R373
Here is S373 and R373 taken to P=20e12.

20151225, 15:29  #24 
Romulan Interpreter
"name field"
Jun 2011
Thailand
10011110000110_{2} Posts 
S428 k=8, up to n=1M sieved to 3e13 (or 30T). This means deep sieved. Finding a factor actually went much slower that the cllr went, at that depth. So, either my cllr is too fast, or my sr1sieve is too slow (read: I am doing something wrong, with the speeds I get I would stop somewhere at 15T18T or so), but I still followed what people suggested, to go to 30T.
Additional in the zip, there is a double check of S428, as high as it could go during the sieving process in a parallel core, which I used for speed comparison (about n=180k), which may be needed by Gary or not. Manual edit can be done on the sieve file to split the range, and eventually sieve the higher range higher (pun intended). There is also a "sandbox" folder where I tried  without success  to find a reasonable prime for k=2 and k=4. Strange or not, there is no other prime to (about) n=110k (see the files), beside of the trivial known primes. The file can be deleted by a mod, to save my quota of uploading space, when it was taken by the interesting parts (for Boinc and by Gary for DCs). Last fiddled with by LaurV on 20151225 at 15:31 
20151225, 19:03  #25  
"Curtis"
Feb 2005
Riverside, CA
1566_{16} Posts 
Quote:
Sorry if my previous guesses caused you to oversieve just think of the time you saved the BOINCers! 

20151226, 03:41  #26 
Romulan Interpreter
"name field"
Jun 2011
Thailand
2·5,059 Posts 
It wasn't any sort of complaint. This is how we learn. I was only wondering if my method is the right one or not, or if I was using the right tools. I also sieved 200k300k strictly, and I could get about ~55M pps (primes per second) while all the range to 1M gave me about ~43M pps. So I let it run with all range. Also, these times were with P95 stopped. When P95 runs, they get to about a bit more than half. This can be seen in the result files where occasional stop/run of other programs (including p95) makes the testing time per each n to jump to double or to half. Somewhere in the middle of the DC result file there is a test for a n=200k for speed comparison, I let it there and added a comment, hope this does not make the automatic parser dizzy.

20151231, 06:29  #27 
May 2007
Kansas; USA
2^{5}·5·71 Posts 
I received another batch of sieve files from Ian. This time specifically for n=25K100K. There are now links to all of them on the pages. They are as follows:
Code:
R225 R442 R445 R451 R943 S225 S442 S445 S451 S943 
20160104, 08:01  #28 
May 2007
Kansas; USA
2^{5}×5×71 Posts 
Another batch received from Ian again for n=25K100K. There are links to all of them on the pages. They are as follows:
Code:
R222 R249 R287 R693 S96 S231 S282 S391 S640 S843 S940 
20160110, 22:08  #29 
May 2007
Kansas; USA
10110001100000_{2} Posts 
Another batch received from Ian again for n=25K100K. There are links to all of them on the pages. They are as follows:
Code:
R145 R215 R591 R738 R742 R757 R971 S616 S742 S757 S971 
20160204, 09:23  #30 
May 2007
Kansas; USA
2^{5}×5×71 Posts 
Another batch received from Ian again. This time for n=50K100K. There are links to all of them on the pages. They are as follows:
Code:
R52 R147 R168 R192 R262 R270 R292 R393 R477 S95 S105 S108 S143 S147 S247 S955 (50K75K) S1027 Quite a few of these bases have a lot fewer k's remaining than a lot of bases searched to n=25K and so would be considered higher priority. Only two of the bases are > 500 so most of them should be fairly easy, especially for BOINC, to search for n=50K100K. 
20160204, 09:55  #31 
May 2007
Kansas; USA
2^{5}×5×71 Posts 
Another batch of 20 more bases for n=25K100K as follows:
Code:
R658 R723 R751 R771 R843 R858 R897 R903 R1027 R1030 S106 S205 S215 S277 S313 S316 S336 S351 S366 S498 
20160204, 17:45  #32 
Sep 2011
Germany
2^{2}·3^{2}·7·13 Posts 

20160209, 00:45  #33 
May 2007
Kansas; USA
2^{5}×5×71 Posts 
Another batch of 23 more bases for n=25K100K as follows:
Code:
R336 R355 R466 R502 R568 R576 R595 R642 R646 R750 R852 R918 R973 S555 S568 S598 S642 S658 S663 S733 S751 S771 S808 
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