mersenneforum.org  

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

Reply
 
Thread Tools
Old 2017-07-17, 18:17   #1420
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

186116 Posts
Default

Three primes in the last few days:

Port 9000:
527*2^1489120-1
595*2^1494593-1

Port 2000:
955*2^1463821-1
mdettweiler is offline   Reply With Quote
Old 2017-07-29, 20:52   #1421
Mini-Geek
Account Deleted
 
Mini-Geek's Avatar
 
"Tim Sorbera"
Aug 2006
San Antonio, TX USA

10000101010112 Posts
Default

Added 123785 : 551*2^1501694-1 (452058 digits)
Mini-Geek is offline   Reply With Quote
Old 2017-08-08, 12:08   #1422
Mini-Geek
Account Deleted
 
Mini-Geek's Avatar
 
"Tim Sorbera"
Aug 2006
San Antonio, TX USA

17·251 Posts
Default

Added 123824 : 465*2^1504138-1 (452794 digits)
Mini-Geek is offline   Reply With Quote
Old 2017-08-09, 07:20   #1423
odicin
 
Sep 2011
Potsdam, Germany

24×7 Posts
Default

Added 123828 : 759*2^1468175-1 (441968 digits)
odicin is offline   Reply With Quote
Old 2017-08-13, 14:24   #1424
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

23·7·163 Posts
Default

Quote:
Originally Posted by Batalov View Post
Not so many anymore. Used to be 2900, now less than 200 and shrinking, and in a couple of months they will be all gone from top5k, except those that were collected into AP3s, the SG pair and the twin pair. I wonder if they will continue running them, just like they still run GFN"15"s.

_______________
"We choose to go to the moon neighborhood mall not because it was hard, but because it was easy, because that goal will serve to organize and measure the best of our energies and skills everyone gets a lolly!" (The new generation's modified and improved motto.)
Alas (for the YGG), the 1290000-bit boundary is now in the past.

And this last of the Mohicans ought to be one the shortest-lived Top5000 primes!
http://primes.utm.edu/primes/page.php?id=123838
Code:
Entrance Rank (*):        5000       
Currently on list? (*):   no       
Submitted:                8/12/2017 21:33:22 CDT       
Removed (*):              8/12/2017 21:53:07 CDT
Batalov is offline   Reply With Quote
Old 2017-08-13, 16:11   #1425
gd_barnes
 
gd_barnes's Avatar
 
May 2007
Kansas; USA

3·7·487 Posts
Default

Quote:
Originally Posted by Batalov View Post
Alas (for the YGG), the 1290000-bit boundary is now in the past.

And this last of the Mohicans ought to be one the shortest-lived Top5000 primes!
http://primes.utm.edu/primes/page.php?id=123838
Code:
Entrance Rank (*):        5000       
Currently on list? (*):   no       
Submitted:                8/12/2017 21:33:22 CDT       
Removed (*):              8/12/2017 21:53:07 CDT
Excellent! It's nice to have their distorting presence gone.
gd_barnes is offline   Reply With Quote
Old 2017-08-13, 17:06   #1426
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

101010001002 Posts
Default

To make the top 5000 today a prime must have 388365 digits or meet the size requirements for it's archivable form.
pepi37 is offline   Reply With Quote
Old 2017-08-13, 20:16   #1427
Batalov
 
Batalov's Avatar
 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

23·7·163 Posts
Default

Quote:
Originally Posted by pepi37 View Post
To make the top 5000 today a prime must have 388365 digits or meet the size requirements for its archivable form.
Even a 1017-digit prime can be archivable, ...and believe me - it is going to stay in the short list for quite a while.
Batalov is offline   Reply With Quote
Old 2017-08-13, 20:48   #1428
pepi37
 
pepi37's Avatar
 
Dec 2011
After milion nines:)

134810 Posts
Default

Quote:
Originally Posted by Batalov View Post
Even a 1017-digit prime can be archivable, ...and believe me - it is going to stay in the short list for quite a while.
Ah, special types of primes
pepi37 is offline   Reply With Quote
Old 2017-09-12, 13:45   #1429
mdettweiler
A Sunny Moo
 
mdettweiler's Avatar
 
Aug 2007
USA (GMT-5)

792 Posts
Default

741*2^1472086-1 is prime!
mdettweiler is offline   Reply With Quote
Old 2017-09-23, 22:53   #1430
juhehe
 
"Jussi Heino"
Sep 2017
Finland

3 Posts
Default

Quote:
Originally Posted by gd_barnes View Post
Someone with a user name of juhehe found a top-5000 prime on port 9000 over a week ago and it has not been reported. If anyone knows how to contact him please let me know.
I noticed the prime too, admittedly some months ago.
I have to go and try to properly report it, I hope it is still possible.

We have exchanged a few emails already back in April the 1st, 2012 :)
juhehe 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 870 2020-10-25 07:34
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 08:14.

Sat Oct 31 08:14:03 UTC 2020 up 51 days, 5:25, 2 users, load averages: 1.99, 1.91, 1.84

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.