mersenneforum.org Untested Riesel conjectures sorted by conjecture
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 2010-01-13, 14:19 #1 rogue     "Mark" Apr 2003 Between here and the 19×347 Posts Untested Riesel conjectures sorted by conjecture Here is a list of all Riesel conjectures which have not been tested, ordered by ck. I figured that people who are new to the search can pick bases from this list with low k to get their feet wet. Code: base conjectured k 1015 11049380 570 12511182 726 12751579 541 15546458 865 21155948 963 22349616 760 22676277 777 23485096 630 24412760 481 25956422 556 26019699 796 27199220 801 40381102 690 42053568 925 44751264 876 51768432 756 54604682 456 76303920 891 79570190 1020 94655888 325 112882226 631 149801300 120 166616308 906 171998037 175 278467080 700 343498413 85 398534880 195 582483712 966 699327630 141 960608630 71 1132052528 345 1295243216 399 1558133564 156 2113322677 946 2156122023 415 3246826818 921 10667550454 435 31732727570 960 61681833328 127 93902377422 981 112303013130 826 131420459393 799 1885767686976 661 2518794379382 910 5005381602981 855 7419914968008 511 40789000085994 280 513613045571841 Last fiddled with by gd_barnes on 2022-01-03 at 07:15 Reason: update status
2010-01-14, 08:16   #2
gd_barnes

May 2007
Kansas; USA

3×3,571 Posts

In the same vein as the untested Sierp conjectures thread, attached is all Riesel conjectures sorted by size, that is conjectured-k.
Attached Files
 Riesel conjectures by size.txt (13.5 KB, 553 views)

 2010-01-22, 09:55 #3 gd_barnes     May 2007 Kansas; USA 3·3,571 Posts An interesting side question has popped into my head about all of this: I wonder if Riesel base 280 with a conjecture of a ridiculous k=~513.6T is higher conjectured than ANY other base? At this moment in time, it's higher than all KNOWN bases but we don't know for sure that it's conjecture is correct or if there is a base > 1024 that might have a higher conjecture. I think the math gurus on this forum might have a little fun with this. Last fiddled with by gd_barnes on 2010-01-22 at 09:56
 2010-01-22, 18:47 #4 Dougal     Jan 2009 Ireland 2×3×31 Posts i was wondering about this a week or two ago,id like to check to see if there are any higher conjectures above 1024,but is there a simple way to test several bases at a time?
 2010-02-03, 19:19 #5 rogue     "Mark" Apr 2003 Between here and the 19×347 Posts Should this thread and the related Sierpinski thread have stickies?
2010-02-04, 10:48   #6
gd_barnes

May 2007
Kansas; USA

1071310 Posts

Quote:
 Originally Posted by rogue Should this thread and the related Sierpinski thread have stickies?
There's no use in encouraging starting new bases more than we already do. We have too many stickies as it is.

There have been a lot of new bases started since the last time I updated this so it has now been updated.

Last fiddled with by gd_barnes on 2010-02-04 at 10:48

 2010-03-22, 07:16 #7 gd_barnes     May 2007 Kansas; USA 247318 Posts I did want to make sure these untested threads don't die so I am keeping them up to date. If anyone sees a base on the list in the 1st or 2nd post here or in the Sierp thread that has either been reserved or already has work done on it, please let me know. Gary Last fiddled with by gd_barnes on 2010-03-22 at 07:16
 2010-04-19, 15:19 #8 10metreh     Nov 2008 2×33×43 Posts Is anyone working on extending the list of conjectures above 1028 (which is where they seem to have been tested to)? I've been doing a bit of work on this.
2010-04-19, 17:38   #9
rogue

"Mark"
Apr 2003
Between here and the

19×347 Posts

Quote:
 Originally Posted by 10metreh Is anyone working on extending the list of conjectures above 1028 (which is where they seem to have been tested to)? I've been doing a bit of work on this.
AFAIAC, keep your results to yourself or publish them elsewhere. I don't recall anyone expressing interest in seeing more conjectures added to this project. There is enough work for this project to keep everyone (currently involved) busy for decades.

 2010-04-20, 07:58 #10 10metreh     Nov 2008 2·33·43 Posts With what parameters was Riesel k=280 (the one with the highest conjectured k) tested (assuming covering.exe was used)? I have managed to reduce the conjecture to k=253971311388192, although that one will still not be proved for a long time! Oddly, the original conjectured k of 513613045571841 didn't show up at all in my run of covering 144 280 -1 100000 1000000000000000. BTW: no conjectures up to 1200 are larger than that (the largest I've found so far is 1150 481388992590). Last fiddled with by 10metreh on 2010-04-20 at 08:05
 2010-04-20, 08:11 #11 kar_bon     Mar 2006 Germany 56108 Posts Here are some efforts with R280. Please compare them to your work.

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