20210212, 13:31  #892  
"Mark"
Apr 2003
Between here and the
6,287 Posts 
Quote:


20210212, 15:16  #893 
Jul 2003
wear a mask
2^{2}·3·131 Posts 

20210212, 22:01  #894 
May 2007
Kansas; USA
2·5,171 Posts 
47 remain for the original Riesel problem.
Here it is 49 remaining including the two even k's. Last fiddled with by gd_barnes on 20210212 at 22:01 
20210215, 03:21  #895 
May 2007
Kansas; USA
2×5,171 Posts 
...and just like that...
Even bigger news from Ryan Propper: 2293*2^129184311 is prime!! See: https://primes.utm.edu/primes/page.php?id=131882 So...within less than a week of each other PrimeGrid and Ryan have knocked out the two smallest k's remaining on the Riesel base 2 effort. Even better news: It also knocks out CRUS k=4586 for R4 and k=18344 for R16! Congrats to Ryan! 
20210215, 07:02  #896 
Romulan Interpreter
Jun 2011
Thailand
3×5^{5} Posts 
YAY! That's indeed news! Big congrats to the finders! Is somebody still updating Mr. Keller's pages? Were they announced? I see none of them in his status page, and Ryan's result is so new didn't make it yet into the PG status page. Or was Ryan working independently, and scared the heck out of PrimeGrid? Last fiddled with by LaurV on 20210215 at 08:02 
20210215, 10:59  #897  
May 2007
Kansas; USA
2·5,171 Posts 
Quote:
They are probably so new that they haven't been announced yet. As best as I can tell Ryan works entirely independently of any project. None of his proof codes at top5000 have a project ID in them. To my knowledge Prof. Keller updates his own pages and continues to do so. The last update dates on many of them were early in February so very recent. I'm confident that he will update them when these finds are formalized. 

20210215, 13:17  #898 
Mar 2006
Germany
5501_{8} Posts 
The Wiki contains a page for the Riesel problem and also for the Prime Grid project.
k=2293 is still shown for the project, because it's not known, if there exists a smaller prime for that kvalue. Ryan Propper do not publish any ranges he's doing in any of his searches. This will keep gaps in search ranges like for k=2293. I also can not create a history (others than on W.Kellers page), only the primes found are noticeable. 
20210215, 18:08  #899 
Jun 2012
Boulder, CO
2^{2}·3·23 Posts 

20210215, 19:59  #900 
"Mark"
Apr 2003
Between here and the
6,287 Posts 

20210215, 20:34  #901  
Jun 2012
Boulder, CO
2^{2}×3×23 Posts 
Quote:
Presumably they can reallocate the resources to searching on the other k's, no? 

20210215, 20:39  #902  
"Mark"
Apr 2003
Between here and the
14217_{8} Posts 
Quote:
Out of curiosity did you do your own sieving or did you use the file they have? If you did your own sieving, then AFAIAC, it is sour grapes on their part. I'm sure that you had the best of intentions, but I'm also certain that PrimeGrid would not have relinquished any tests to someone else once they believed that they had control over the search. 

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