20081225, 04:30  #529 
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Sierp. base 23 is now completed to n=135K; no primes yet on this pesky last remaining k (68). Results are attached for 125K135K.
Based on my the testing times I'm getting so far (~2300 sec. at n=135K), I'm estimating that the current sieve depth should be good up until a the next couple FFT jumps. Thus, I'll continue testing this base to n=150K. (Note: Even though the results I've attached for 125K135K are in LLR format, they were really done with Phrot. However, I had to switch to a different Phrot version in the middle of the test due to a little [sincefixed] bug regarding resuming from an alreadystarted input file. And since the two different versions produce slightly different results formats, I figured that the easiest way to get the whole range's results in a unified format would be to convert them to LLR format. ) 
20081227, 06:00  #530  
May 2007
Kansas; USA
3·3,449 Posts 
Quote:
Pesky? Try the final k on Sierp base 12. lol Status...complete to n=220K. Nothing to report. Ergh. Even worse...the final k on Sierp base 9 at n=285K. Of course than there's Sierp bases with one k remaining for base 10 at 195K, 17 at 240K, 18 at 235K, and 27 at 400K! All toll; 7 Sierp bases <= 32 with 1 k remaining; all now at n=135K or higher, 6 at n=195K or higher, and 5 at n=220K or higher. (sheesh) Gary 

20081227, 11:11  #531 
May 2007
Kansas; USA
3×3,449 Posts 
Sierp base 31 is now complete to n=10K. I'm going to take it up to n=25K. At that point, it should have less k's remaining than either Riesel or Sierp base 19.
110 k's were found prime for n=9.2K10K. 1934 k's now remain. k's remaining shown on the web pages. Gary 
20081230, 15:57  #532 
May 2008
Wilmington, DE
101100100100_{2} Posts 
Riesel Base 23
Both k's now complete to n=130.5K Continuing to 200K 
20081231, 19:23  #533 
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 
Sierp. base 23 is complete to n=150K, no primes. Results for 135K150K are attached.
Continuing to 175K. 
20090104, 18:29  #534 
Jan 2005
479 Posts 
Sierpinski base 24:
Sieved upto 1T, tested to n=35315. 14 primes found since last update Riesel base 24: Sieved upto .55T, tested to n=33875 12 primes found since last update Files have been sent to Gary 
20090105, 11:59  #535 
Mar 2006
Germany
2882_{10} Posts 
9577*6^1210991 is prime!
Riesel base 6 at n=125k, ongoing 
20090105, 12:33  #536 
May 2007
Kansas; USA
3×3,449 Posts 
Karsten, Nice prime! This also knocks out k=57462 for Riesel base 36. That is: 57462*36^605491 is prime! Question: Would you consider releasing Riesel base 6 at n=150K? I think it would be nice to run it as a team drive with a PRPnet server like we're doing with Sierp base 6. The Sierp side is nearing completion to n=130K with the 3 lowest k's being tested to n=150K first before resuming the rest of them higher. I'm asking because even with only 11 k's still remaining at n=125K on the Riesel side, it is still unlikely to be proven in the next decade or more, even with a big team effort on it. Thanks, Gary Last fiddled with by gd_barnes on 20090105 at 13:16 Reason: base 36 prime 
20090105, 13:35  #537  
May 2007
Kansas; USA
3×3,449 Posts 
Quote:
Thanks for the huge amount of work on this base Micha. For everyone's reference, as implied in Micha's Email to me, he is unreserving this base. Although I am showing it as unreserved on the pages, it's going to take me a little while to update them and clean up the sieve file that he has provided up to n=100K so that it can be posted. I'll probably take care of it as well as many other updates on the pages after I get back from my current trip...likely Thurs. or Fri. Gary 

20090108, 02:57  #538 
May 2007
Kansas; USA
24153_{8} Posts 
I got a PM from Karsten saying that he would release Riesel base 6 at n=150K.
Max, let's plan on getting all k's on Sierp base 6 up to n=150K and then pausing if Karsten isn't there yet. We'll then discuss how we want to attack this entire base. It should be an excellent base for a combined team drive using new PRPnet. Gary 
20090108, 03:02  #539  
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Quote:
Of course, if we did decide to hold off on doing Sierp. base 6 for >150K until the Riesel side is ready at that same level, then we could have the PRPnet server spend some time doing other things, say, some of the bases <32 that have only one or two k's remaining. It would be really nice to see a few of those knocked offand many of them have sieve files already prepared. 

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