mersenneforum.org > News Merry Christmas and a prime! (M50 related)
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 2017-12-28, 13:30 #67 pacionet     Oct 2005 Italy 5238 Posts I try with M77324641
 2017-12-28, 13:37 #68 MushNine     Nov 2017 United Kingdom 13 Posts I thought the residue would be a string of zeroes for a prime. None of Jon's residue are such. So I suppose it's been removed from public record.
2017-12-28, 13:40   #69
pacionet

Oct 2005
Italy

3×113 Posts

Quote:
 Originally Posted by MushNine I thought the residue would be a string of zeroes for a prime. None of Jon's residue are such. So I suppose it's been removed from public record.
If i remember correctly, the server writes a "masked" residue for a probable prime.

Last fiddled with by pacionet on 2017-12-28 at 13:40

 2017-12-28, 13:43 #70 Madpoo Serpentine Vermin Jar     Jul 2014 2·5·7·47 Posts Woohoo! Just finished my double-check: Mxxxxxxxx is prime! Looks like we have a winner, but my run was using the same Prime95 as the first result and I don't know if George will want to wait for the pending cudalucas check before making the exponent public. Traditionally I think that was the process. I saved the interim partial residues every 1M iterations (starting at 36M since I forgot at first) so we'll be comparing the cudalucas run along the way. But...yeah, the "Boxing Day Prime" looks good!
2017-12-28, 13:45   #71
pacionet

Oct 2005
Italy

3·113 Posts

Quote:
 Originally Posted by Madpoo Just finished my double-check: Mxxxxxxxx is prime! Looks like we have a winner, but my run was using the same Prime95 as the first result and I don't know if George will want to wait for the pending cudalucas check before making the exponent public. Traditionally I think that was the process. I saved the interim partial residues every 1M iterations (starting at 36M since I forgot at first) so we'll be comparing the cudalucas run along the way. But...yeah, the "Boxing Day Prime" looks good!
I think we can say "Probably found M50 : it is ..." .
Come on. :)

 2017-12-28, 13:49 #72 Brian-E     "Brian" Jul 2007 The Netherlands 326910 Posts I didn't believe GIMPS would ever find another one. We know the exponent is above 36 million now. There I was thinking it might have been the result of a triple check of a mistakenly verified test from years and year ago.
2017-12-28, 13:54   #73
Mark Rose

"/X\(‘-‘)/X\"
Jan 2013

29·101 Posts

Quote:
 Originally Posted by pacionet I think we can say "Probably found M50 : it is ..." . Come on. :)
... higher than the last one ;)

 2017-12-28, 13:56 #74 pacionet     Oct 2005 Italy 3×113 Posts I hope this forum will be the first to know the newly discovered prime! Come on!
2017-12-28, 14:08   #75
Mark Rose

"/X\(‘-‘)/X\"
Jan 2013

29·101 Posts

Quote:
 Originally Posted by Brian-E I didn't believe GIMPS would ever find another one. We know the exponent is above 36 million now. There I was thinking it might have been the result of a triple check of a mistakenly verified test from years and year ago.
Well we already knew that from earlier posted information. Ernst posted it would take at 72 hours to complete a run at 4 ms/iter, meaning it would be at least around 64 million.

Last fiddled with by Mark Rose on 2017-12-28 at 14:08

 2017-12-28, 14:13 #76 pacionet     Oct 2005 Italy 3×113 Posts I found Madpoo test, the prime could be M64764893 :) which seems have 3 LL (1 failed e 2 OK) MadPoo Manual testing 64764893 C 2017-12-28 13:29 1.8 163.7113 7B56C023189FB494 rudimeier vinaka 64764893 C 2017-12-26 14:35 12.6 157.0998 7B56C023189FB494 Is it? Last fiddled with by pacionet on 2017-12-28 at 14:21
2017-12-28, 14:29   #77
pinhodecarlos

"Carlos Pinho"
Oct 2011
Milton Keynes, UK

10010111101012 Posts

Quote:
 Originally Posted by pacionet I found Madpoo test, the prime could be M64764893 :) which seems have 3 LL (1 failed e 2 OK) MadPoo Manual testing 64764893 C 2017-12-28 13:29 1.8 163.7113 7B56C023189FB494 rudimeier vinaka 64764893 C 2017-12-26 14:35 12.6 157.0998 7B56C023189FB494 Is it?
Maybe a decoy?

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