20040413, 03:00  #122 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2×3^{2}×521 Posts 
Luigi,
1) From your list on your website, I ran all those that you have at 60 and no factor to 62 (no factors), see previous posts. 2) Could you provide a readme for you program. Or at least give all the switches and parameters. 3) Here is a fresh batch that I ran. All the numbers were run to 60bits (the last one was run to 61). Code:
M3321929029 has a factor: 42168567094127 M3321929041 no factor from 2^2 to 2^60. M3321929053 no factor from 2^2 to 2^60. M3321929059 no factor from 2^2 to 2^60. M3321929113 no factor from 2^2 to 2^60. M3321929129 has a factor: 1063017321281 M3321929129 has a factor: 406550974523537 M3321929129 has a factor: 446771855975579753 M3321929173 no factor from 2^2 to 2^60. M3321929179 no factor from 2^2 to 2^60. M3321929197 no factor from 2^2 to 2^60. M3321929209 no factor from 2^2 to 2^60. M3321929257 has a factor: 1275434806649609 M3321929339 has a factor: 5106177450128969 Also, coming up there is an island of primes from M3321929509  M3321929621 (12 of them.) This got me thinking, has anyone studied the areas around the exponets of Mersenne primes? 
20040413, 03:36  #123 
Jun 2003
Russia, Novosibirsk
2×107 Posts 
Newest stats for GIMPS, LMH, LMH>79.3, Operation Billion:
http://www.yxine.km.ru/data/files/mersennestatus.zip 
20040413, 05:32  #124 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2·3^{2}·521 Posts 
This is fun.
Another batch, this should hold us quite a while:
Code:
M3321929357 has a factor: 26575434857 M3321929393 has a factor: 5921511883350937 M3321929393 has a factor: 35018683424306311 M3321929411 no factor from 2^2 to 2^60. M3321929461 no factor from 2^2 to 2^60. M3321929477 has a factor: 595324177467781721 M3321929509 has a factor: 1455005124943 M3321929519 no factor from 2^2 to 2^60. M3321929531 has a factor: 2074963555230407 M3321929531 has a factor: 4584880631672767 M3321929551 has a factor: 8174238826850191 M3321929563 no factor from 2^2 to 2^60. M3321929573 no factor from 2^2 to 2^60. M3321929579 no factor from 2^2 to 2^60. M3321929587 has a factor: 2853464432782087 M3321929599 has a factor: 11719767625273 M3321929603 has a factor: 6643859207 Last fiddled with by Uncwilly on 20040413 at 05:42 Reason: You tell me. 
20040413, 11:24  #125  
Banned
"Luigi"
Aug 2002
Team Italia
12C3_{16} Posts 
Quote:
It probably needs Cygwin and Cyggmp3 dll, I never tested it outside Cygwin environment. Luigi 

20040413, 11:38  #126  
Banned
"Luigi"
Aug 2002
Team Italia
11303_{8} Posts 
Quote:
2) Which program? factor3_1, factor3_1b(atch), primelister? The only 2 switches of factor3_1 are h and r: the first gives you a help screen, the second will resume your work from a previously saved "status.txt" file without retyping all parameters. Factor3_1b has no switches: it only works if you provide a text file with each line formatted as "exponent,startbit,stopbit" (obviously without quotes) as standard input: for example, "factor3_1b <list.txt". If you need it I will upload here, but notice that its resume system can only be used by factor3_1, at only one exponent a time: it makes no check to the list file when the computer crashes, simply restarts from scratch. HTH Luigi 

20040413, 11:52  #127  
Banned
"Luigi"
Aug 2002
Team Italia
3·1,601 Posts 
Quote:
Thank you! Uncwilly: I am reporting factors to Will Edgington, as "Project Billion Digits". If you like I can add your name to the factors you discovered. All: It's time to take another exponent up to 69 bits! Luigi 

20040413, 11:53  #128 
Feb 2003
78_{10} Posts 
3321928373
no factor to 65 bits
M3321928373 no factor from 2^63 to 2^64. M3321928373 no factor from 2^64 to 2^65. 
20040413, 12:00  #129 
Jun 2003
Russia, Novosibirsk
2·107 Posts 
Here's it: 3321928241 no factor to 2^69!
I'll take 3321928381 from 63>69 bits. Last fiddled with by HiddenWarrior on 20040413 at 12:05 
20040413, 12:13  #130  
Banned
"Luigi"
Aug 2002
Team Italia
3×1,601 Posts 
Quote:
I'll update the page as I get home. Luigi 

20040413, 12:19  #131  
Banned
"Luigi"
Aug 2002
Team Italia
3·1,601 Posts 
Quote:
Luigi 

20040413, 14:34  #132  
Banned
"Luigi"
Aug 2002
Team Italia
1001011000011_{2} Posts 
Quote:


Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Ten Billion Digits Mersenne Numbers  aketilander  Operation Billion Digits  14  20210227 07:14 
The "one billion minus 999,994,000" digits prime number  a1call  Miscellaneous Math  179  20151112 14:59 
Operation Megabit Twin  Oddball  Twin Prime Search  370  20130103 21:26 
modulo operation for polynomials?  smslca  Math  3  20110418 17:18 
question range 1 billion to 2 billion?  Unregistered  Information & Answers  7  20100812 06:25 