mersenneforum.org  

Go Back   mersenneforum.org > Prime Search Projects > Conjectures 'R Us

Reply
 
Thread Tools
Old 2015-05-26, 08:00   #430
unconnected
 
unconnected's Avatar
 
May 2009
Russia, Moscow

1001111010012 Posts
Default

5903*2^2938744-1
unconnected is offline   Reply With Quote
Old 2015-05-26, 12:01   #431
paleseptember
 
paleseptember's Avatar
 
Jun 2008
Wollongong, .au

B716 Posts
Default

Quote:
Originally Posted by unconnected View Post
Good job!
paleseptember is offline   Reply With Quote
Old 2015-06-12, 13:04   #432
rajula
 
rajula's Avatar
 
"Tapio Rajala"
Feb 2010
Finland

32×5×7 Posts
Default

4233 * 28^331135 + 1
rajula is offline   Reply With Quote
Old 2015-06-12, 17:05   #433
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

11×937 Posts
Default

Nice one Rajula!
gd_barnes is online now   Reply With Quote
Old 2015-06-13, 12:52   #434
MyDogBuster
 
MyDogBuster's Avatar
 
May 2008
Wilmington, DE

22×23×31 Posts
Default S315

I may as well post my find for today. It gives us 3 nice ones in a about a day.

1390*315^101935+1 is prime but NOT Top5000

278*315^180134+1 is prime and IS Top 5000 http://primes.utm.edu/primes/page.php?id=119998

All k's for S315 tested to 180K and continuing.

This makes S315 a 2ker

Gary: Sorry for not posting the smaller one. I was waiting until I reached n=200K but the big one showed up.

Last fiddled with by MyDogBuster on 2015-06-13 at 12:59
MyDogBuster is offline   Reply With Quote
Old 2015-06-13, 14:47   #435
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

11·937 Posts
Default

Nice ones Ian! The project is rolling today. :-)
gd_barnes is online now   Reply With Quote
Old 2015-06-29, 12:06   #436
unconnected
 
unconnected's Avatar
 
May 2009
Russia, Moscow

43×59 Posts
Default

Added 120046 : 2751*2^3206569-1 (965277 digits)

This eliminates most high-weighted k=5502 from R256 search.
unconnected is offline   Reply With Quote
Old 2015-07-11, 12:18   #437
lorgix
 
lorgix's Avatar
 
Sep 2010
Scandinavia

3·5·41 Posts
Default

10243047*2^1290576+1 is prime.
lorgix is offline   Reply With Quote
Old 2015-07-20, 11:54   #438
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

2×32×151 Posts
Default

6*409^369832+1 (965900 digits) found by Grey (credits goes to him)

base S409 solved

rebirther is offline   Reply With Quote
Old 2015-07-21, 08:55   #439
rebirther
 
rebirther's Avatar
 
Sep 2011
Germany

2·32·151 Posts
Default

5354*55^244064-1 (424764 digits) found by Grey (credits goes to him)
rebirther is offline   Reply With Quote
Old 2015-07-26, 12:02   #440
rajula
 
rajula's Avatar
 
"Tapio Rajala"
Feb 2010
Finland

31510 Posts
Default

3394*28^427262 + 1
rajula is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Report top-5000 primes for all k<=1001 gd_barnes No Prime Left Behind 1494 2021-02-27 20:49
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

All times are UTC. The time now is 20:50.

Mon Mar 1 20:50:19 UTC 2021 up 88 days, 17:01, 0 users, load averages: 2.40, 3.06, 2.88

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, 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.