mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > No Prime Left Behind

Reply
 
Thread Tools
Old 2009-10-07, 00:59   #551
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3·11·307 Posts
Default

An outstanding run Vaughan and you have TWO more NEW primes for n>490K. See your PM.

In the mean time, I have a couple of my own:

2029*2^489935-1 is confirmed prime
2749*2^489977-1 is prime

Vaughan definitely picked the right time to bring the pharm. Although not THE best, this is definitely one of NPLB's top 3-4 runs of all time: 9 primes in an n=1000 range from n=488990-489990 in just over a day, 5 of which were new. The additional primes not yet reported at n=~490.2K-490.3K will make it 11 primes (7 new) in an n=1350 range. Compare that to a fairly recent nice run that I commented on where we got 10 primes in an n=1500 range. This one certainly tops that one, and at a higher n-range to boot!

Rollin, rollin, rollin...


Gary

Last fiddled with by gd_barnes on 2009-10-07 at 01:08
gd_barnes is offline   Reply With Quote
Old 2009-10-07, 06:42   #552
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5×67 Posts
Default

2615*2^490218-1 is prime
2613*2^490338-1 is prime

Thanks for the PM Gary. It does indeed look like I chose a good time to find some more primes.

Glad to help your project.
vaughan is offline   Reply With Quote
Old 2009-10-07, 18:36   #553
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

236238 Posts
Default

2633*2^490874-1 is prime

Cipher found another one also. It's a good thing we've been on an excellent run. PrimeGrid just DUMPED 40+ n=470K-475K primes over the last 24 hours. They've definitely "raised the bar" for the non-BOINC projects.

Last fiddled with by gd_barnes on 2009-10-07 at 18:46
gd_barnes is offline   Reply With Quote
Old 2009-10-07, 19:10   #554
cipher
 
cipher's Avatar
 
Feb 2007

21110 Posts
Default

2689*2^490669-1

http://primes.utm.edu/primes/page.php?id=90309

Let the roll continue...
cipher is offline   Reply With Quote
Old 2009-10-08, 21:14   #555
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3·11·307 Posts
Default

2127*2^491860-1 is prime
gd_barnes is offline   Reply With Quote
Old 2009-10-08, 23:33   #556
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5×67 Posts
Default

2585*2^491518-1 is prime
vaughan is offline   Reply With Quote
Old 2009-10-09, 20:26   #557
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3·11·307 Posts
Default

2397*2^492334-1 is confirmed prime
gd_barnes is offline   Reply With Quote
Old 2009-10-10, 00:12   #558
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5·67 Posts
Default

2787*2^492322-1 is prime
2515*2^492565-1 is prime

Thanks for the PM Gary. The email notification system still not working for me.
vaughan is offline   Reply With Quote
Old 2009-10-10, 08:55   #559
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5·67 Posts
Default

2029*2^492765-1 is confirmed prime
vaughan is offline   Reply With Quote
Old 2009-10-10, 12:44   #560
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5178 Posts
Default

2531*2^493038-1 is prime
vaughan is offline   Reply With Quote
Old 2009-10-11, 10:50   #561
vaughan
 
vaughan's Avatar
 
Jan 2005
Sydney, Australia

5·67 Posts
Default

2583*2^493666-1 is prime
vaughan is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Report top-5000 primes here gd_barnes Conjectures 'R Us 841 2020-05-23 07:39
Report top-5000 primes for all k<=1001 gd_barnes No Prime Left Behind 1487 2020-01-06 21:32
All top 5000 primes will have the same number of digits in 2014 ;-) Batalov Conjectures 'R Us 10 2013-03-29 01:29
Misc. reserves/statuses/primes for k>2000 & k=1003 gd_barnes No Prime Left Behind 113 2009-07-30 22:32
Twenty Oldest Primes on Top 5000 List masser Lounge 9 2008-08-27 12:31

All times are UTC. The time now is 09:59.

Sat Jun 6 09:59:04 UTC 2020 up 73 days, 7:32, 0 users, load averages: 1.67, 1.53, 1.30

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.