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 Showing results 1 to 25 of 1000 Search took 0.26 seconds. Search: Posts Made By: robert44444uk
 Forum: Prime Gap Searches 2020-11-14, 09:05 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Cool! The megagaps I found were based on a... Cool! The megagaps I found were based on a deep sieve of promising candidates (perl program) and pfgw for the intermediate composite checking. My largest gap (5m+) took three months to find.
 Forum: Prime Gap Searches 2020-11-03, 15:46 Replies: 113 Views: 13,364 Posted By robert44444uk Hi henryzz - generally speaking we do sieve over... Hi henryzz - generally speaking we do sieve over A in our deficient primorial searches - A is favoured when 5mod30 or 25mod30, but others also get a look in - so I tend to look at...
 Forum: Prime Gap Searches 2020-10-30, 15:39 Replies: 113 Views: 13,364 Posted By robert44444uk There are two major approaches at the moment. ... There are two major approaches at the moment. Deficient primorials of the form A*p#/d form the majority of gap records, given that it is at a midpoint of a relatively smooth range 4 merits wide,...
 Forum: Prime Gap Searches 2020-10-29, 09:54 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk We can now add 117242 to that list We can now add 117242 to that list
 Forum: Prime Gap Searches 2020-10-29, 08:05 Replies: 113 Views: 13,364 Posted By robert44444uk Hi Seth It would be useful, in this and your... Hi Seth It would be useful, in this and your other post, #98 if you could explain your variables - so what is "m", "d", "p" "X" - generally, for deficient primorial multiples we have tended to use...
 Forum: Lounge 2020-10-26, 07:14 Replies: 1,542 Views: 110,512 Posted By robert44444uk Kenneth Conrow RIP died 28 March 2019, - he is... Kenneth Conrow RIP died 28 March 2019, - he is credited in the bibliography relating the search for prime gaps, but his prime gap records have all been superseded so that none of the current prime...
 Forum: Prime Gap Searches 2020-10-24, 14:41 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk I just found the second largest merit 30 gap... I just found the second largest merit 30 gap ever: The list will look like this when I post it - top 20 30-merit gaps 309030 31.7822 Rosnthal 214090 30.5885 RobSmith 203890 35.6402 RobSmith...
 Forum: Prime Gap Searches 2020-10-24, 06:56 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Now found Now found
 Forum: Prime Gap Searches 2020-10-19, 08:29 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Very pretty - I would take the top of the CFC... Very pretty - I would take the top of the CFC line and code as "Mersenne Prime Gap Search" (PGS) given the efforts of this group to get the search to 2^64 a couple of years back. On a selfish...
 Forum: Prime Gap Searches 2020-10-18, 07:28 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk This graph just goes to show how puny our efforts... This graph just goes to show how puny our efforts are, and how many really big (40+ merit) gaps there are out there!
 Forum: Prime Gap Searches 2020-10-15, 11:33 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk LGTM :) LGTM :)
 Forum: Prime Gap Searches 2020-10-14, 08:19 Replies: 113 Views: 13,364 Posted By robert44444uk Here's one for the mathematicians: Two... Here's one for the mathematicians: Two prime gaps - the first is a first occurrence, the second is the smallest found to date, but probably not first occurrence. 1430 4606937813294064947...
 Forum: Prime Gap Searches 2020-10-07, 10:21 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Envy! Envy!
 Forum: Prime Gap Searches 2020-10-06, 08:26 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk That is sooo cool! That is sooo cool!
 Forum: Prime Gap Searches 2020-10-06, 08:25 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk The "M Jansen" records appear only as... The "M Jansen" records appear only as "M"
 Forum: Prime Gap Searches 2020-10-05, 08:18 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Does this mean I need to submit those 2000+... Does this mean I need to submit those 2000+ records again? Or do you have them somewhere?
 Forum: Prime Gap Searches 2020-10-04, 09:49 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Hmmm, the 2000+ have left the queue! I wonder... Hmmm, the 2000+ have left the queue! I wonder what happened to them?
 Forum: Prime Gap Searches 2020-10-03, 15:15 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk I posted those, and it turns out that only the... I posted those, and it turns out that only the records that improved had been previously upgraded, and not the records of new gaps. These are now posted, along with many other records I found in the...
 Forum: Prime Gap Searches 2020-10-03, 12:39 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Hmmm, that's interesting. I found two files I... Hmmm, that's interesting. I found two files I sent you, Aug-Nov 2019, and Dec 2019. I sent these to you on 10-1-2020. The December 2019 file appears to have already been processed, as there are no...
 Forum: Prime Gap Searches 2020-10-03, 07:26 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Ahh, the mysterious M is now known. Not a James... Ahh, the mysterious M is now known. Not a James Bond character after all :)
 Forum: Prime Gap Searches 2020-10-01, 09:11 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Now known! Now known!
 Forum: Prime Gap Searches 2020-09-30, 12:26 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Most wanted: Largest gap known is <10 merit:... Most wanted: Largest gap known is <10 merit: 117934 119786 120506 122954
 Forum: Prime Gap Searches 2020-09-30, 07:15 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk We want you back Dana! We want you back Dana!
 Forum: Prime Gap Searches 2020-09-29, 07:47 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk Seth, You might want to do a small database clean... Seth, You might want to do a small database clean up as Michiel J appears twice in the table below of numbers of discoveries by discoverer. Finally, Dana J is under 50k finds!! 49896 Jacobsen...
 Forum: Prime Gap Searches 2020-09-28, 08:37 Replies: 197 Sticky: Prime Gap News Views: 28,091 Posted By robert44444uk There are lot of 35 merit gaps now! This list... There are lot of 35 merit gaps now! This list excludes instances of gaps >35 but which are the same length as a gap with higher merit. 1 8350 41.94 Gapcoin 2 15900 39.62 Jacobsen 3 18306 ...
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