Report top-5000 primes for all k<=1001 - Page 133

MiHost · 2018-02-27, 17:43

Added 124476 : 305*2^2358854-1 (710089 digits)

gd_barnes · 2018-03-05, 07:29

Looks like there are two top-5000 primes yet to report from 6 days ago. One from Max and one from Sashixi.

Interestingly there were 3 primes found within 2 hours of each other on Feb. 27th; by 3 different people.

mdettweiler · 2018-03-08, 08:05

Quote:

Originally Posted by gd_barnes

Looks like there are two top-5000 primes yet to report from 6 days ago. One from Max and one from Sashixi.

Interestingly there were 3 primes found within 2 hours of each other on Feb. 27th; by 3 different people.

And here's mine, belatedly:

691*2^1503141-1

gd_barnes · 2018-03-09, 23:24

It turns out that the "prime" 455*2^1560160-1 that Sashixi found was not prime.

After not being able to get a hold of him, I submitted it to the top-5000 site and it came back as composite. In the future, I will doublecheck any prime that this user finds.

Dave, can you remove this "prime" from the database? Thanks.

henryzz · 2018-03-13, 15:51

Quote:

Originally Posted by gd_barnes

It turns out that the "prime" 455*2^1560160-1 that Sashixi found was not prime.

After not being able to get a hold of him, I submitted it to the top-5000 site and it came back as composite. In the future, I will doublecheck any prime that this user finds.

Dave, can you remove this "prime" from the database? Thanks.

That would be a good feature for the prpnet server to automatically check primes. It is probably the same issue that used to give me some false primes and others for GIMPS. It took a bios update for my pc to become stable.

AMDave · 2018-03-14, 12:01

Hi Gary. It took me a couple of days to catch this message.
Will do, tomorrow night, after I get home.

odicin · 2018-03-20, 07:32

Added 124535 : 597*2^1563213-1 (470577 digits)

Regards Odi

MiHost · 2018-04-09, 03:13

Added 124575 : 321*2^2378535-1 (716013 digits)

mdettweiler · 2018-04-09, 20:30

Whoops, almost forgot about this one...I see Gary reported it a few days ago. No problem.

825*2^1504415-1 (port 2000)

mdettweiler · 2018-05-17, 06:54

625*2^1509873-1 is prime!

gamer007 · 2018-05-26, 02:07

607*2^1510953-1 is prime!

2018-03-05, 07:29	#1454
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	Looks like there are two top-5000 primes yet to report from 6 days ago. One from Max and one from Sashixi. Interestingly there were 3 primes found within 2 hours of each other on Feb. 27th; by 3 different people. Last fiddled with by gd_barnes on 2018-03-05 at 07:29

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Report top-5000 primes here	gd_barnes	Conjectures 'R Us	949	2021-07-11 08:18
Report top-5000 primes for k=1003-3000	gd_barnes	No Prime Left Behind	688	2020-04-24 07:31
All top 5000 primes will have the same number of digits in 2014 ;-)	Batalov	Conjectures 'R Us	10	2013-03-29 01:29
Twenty Oldest Primes on Top 5000 List	masser	Lounge	9	2008-08-27 12:31
get all the 5000 biggest primes above 100K digits	jasong	jasong	1	2007-06-09 22:51

2018-02-27, 17:43	#1453
MiHost "Rick" Nov 2010 Michigan 17₁₆ Posts	Added 124476 : 305*2^2358854-1 (710089 digits)

2018-03-09, 23:24	#1456
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	It turns out that the "prime" 455*2^1560160-1 that Sashixi found was not prime. After not being able to get a hold of him, I submitted it to the top-5000 site and it came back as composite. In the future, I will doublecheck any prime that this user finds. Dave, can you remove this "prime" from the database? Thanks.

2018-03-14, 12:01	#1458
AMDave Jan 2006 deep in a while-loop 2×7×47 Posts	Hi Gary. It took me a couple of days to catch this message. Will do, tomorrow night, after I get home.

2018-03-20, 07:32	#1459
odicin Sep 2011 Potsdam, Germany 3²·13 Posts	Added 124535 : 597*2^1563213-1 (470577 digits) Regards Odi

2018-04-09, 03:13	#1460
MiHost "Rick" Nov 2010 Michigan 23 Posts	Added 124575 : 321*2^2378535-1 (716013 digits)

2018-04-09, 20:30	#1461
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 14151₈ Posts	Whoops, almost forgot about this one...I see Gary reported it a few days ago. No problem. 825*2^1504415-1 (port 2000)

2018-05-17, 06:54	#1462
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	625*2^1509873-1 is prime!

2018-05-26, 02:07	#1463
gamer007 Mar 2009 272₈ Posts	607*2^1510953-1 is prime!