mersenneforum.org  

Go Back   mersenneforum.org > Other Stuff > Open Projects

Reply
 
Thread Tools
Old 2008-07-28, 20:52   #34
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

2·3·227 Posts
Default

Taking 245 - 250 T.
lavalamp is offline   Reply With Quote
Old 2008-07-31, 12:20   #35
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

2×3×227 Posts
Default

Returning 240 - 245 T, 6 factors found. Taking 250 - 255 T.

Last fiddled with by lavalamp on 2008-07-31 at 12:20
lavalamp is offline   Reply With Quote
Old 2008-08-07, 07:38   #36
ValerieVonck
 
ValerieVonck's Avatar
 
Mar 2004
Belgium

22·211 Posts
Default

255 - 260 T - CedricVonck - Reserved
ValerieVonck is offline   Reply With Quote
Old 2008-08-11, 23:13   #37
philmoore
 
philmoore's Avatar
 
"Phil"
Sep 2002
Tracktown, U.S.A.

3×373 Posts
Default

Quote:
Originally Posted by lavalamp View Post
In the Excel file that you attached, where does the 1.781 come from used in calculation 1? I tried and failed to see anything special about that number that would warrant it being there. When calculating the odds for a Mersenne prime that number is a 2, because you only need to trial factor up to half the bit depth of the candidate (square root) to prove primality (not that anyone would or could prove primality by that method for the 10m digit candidates).

e to gamma, the Euler-Mascheroni constant, check out:
http://mathworld.wolfram.com/MertensTheorem.html
philmoore is offline   Reply With Quote
Old 2008-08-16, 22:49   #38
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

55216 Posts
Default

Returning 250 - 255 T, 5 factors found. Taking 260 - 265 T.
lavalamp is offline   Reply With Quote
Old 2008-08-17, 16:55   #39
ValerieVonck
 
ValerieVonck's Avatar
 
Mar 2004
Belgium

22·211 Posts
Default

255 - 260 T in progress CedricVonck => Range done
4 factors found and submitted
ValerieVonck is offline   Reply With Quote
Old 2008-08-17, 17:19   #40
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

25228 Posts
Default

Cool thanks, factors received. You sell yourself short though, you found 25% more than that.

Last fiddled with by lavalamp on 2008-08-17 at 17:19
lavalamp is offline   Reply With Quote
Old 2008-08-25, 13:33   #41
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

25228 Posts
Default

Taking 265 - 270 T and 270 - 275 T.

Last fiddled with by lavalamp on 2008-08-25 at 13:34
lavalamp is offline   Reply With Quote
Old 2008-08-26, 22:35   #42
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

2×3×227 Posts
Default

Returning 245 - 250 T, 6 factors found.
lavalamp is offline   Reply With Quote
Old 2008-09-04, 06:43   #43
lavalamp
 
lavalamp's Avatar
 
Oct 2007
Manchester, UK

2·3·227 Posts
Default

Returning 265 - 270 T, 7 factors found. Taking 275 - 280 T.
lavalamp is offline   Reply With Quote
Old 2008-09-04, 06:50   #44
em99010pepe
 
em99010pepe's Avatar
 
Sep 2004

54168 Posts
Default

Probably a 10M prime was found on GIMPS so will you keep sieving? Thanks in advance.
em99010pepe is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
News from sub-project Deep Sieving Batalov Operazione Doppi Mersennes 59 2021-09-15 09:47
Deep Sieving MM49 in parallel ET_ Operazione Doppi Mersennes 22 2016-07-28 11:23
Deep Hash diep Math 5 2012-10-05 17:44
Alternative Sieving for 10M digit prime search jasong Lone Mersenne Hunters 200 2008-10-29 13:21
Help Sieving 10 Million Digit Candidates lavalamp Riesel Prime Search 26 2008-05-25 08:24

All times are UTC. The time now is 02:04.


Sat Dec 4 02:04:34 UTC 2021 up 133 days, 20:33, 0 users, load averages: 1.69, 1.60, 1.44

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.