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 2006-02-13, 09:12 #287 Footmaster     Mar 2004 3×13 Posts M332194169 complete to 2^70 no factor found and M332192831 no factor to 2^74, Wc1: 7454A29F Regards Foots
2006-02-13, 19:11   #288

"Richard B. Woods"
Aug 2002
Wisconsin USA

22×3×641 Posts

Quote:
 Originally Posted by Jwb52z Gribozavr, that's an extremely small number if my calculations are correct using your example. It's just a little bit over 9x10^-12.
If you were referring to the calculated number POINTS, better double-check.

With EXPMIN=332192831, END = 66, START = 65, and EXP = 332,192,831:

POINTS = ((2^66 - 2^65)/2^65)*(332192831/332192831) = (2^65/2^65)*(1/1) = 1

With EXP = 3,321,928,319:

POINTS = ((2^66 - 2^65)/2^65)*(332192831/3321928319) = 0.099999999729073022180404248512022 = ~ 0.1

Last fiddled with by cheesehead on 2006-02-13 at 19:15

 2006-02-13, 19:22 #289 gribozavr     Mar 2005 Internet; Ukraine, Kiev 6278 Posts Yes, that's exactly what was I meant: trial factoring [in equal bit ranges] 3,321,928,319 tekes 10 times less work than 332,192,831.
 2006-02-14, 09:16 #290 Footmaster     Mar 2004 3×13 Posts M332194169 no factor to 2^71 regards Foots
2006-02-15, 04:29   #291
thechickenman

Nov 2005
South Carolina

7×11 Posts

Quote:
 Originally Posted by cheesehead If you were referring to the calculated number POINTS, better double-check. With EXPMIN=332192831, END = 66, START = 65, and EXP = 332,192,831: POINTS = ((2^66 - 2^65)/2^65)*(332192831/332192831) = (2^65/2^65)*(1/1) = 1 With EXP = 3,321,928,319: POINTS = ((2^66 - 2^65)/2^65)*(332192831/3321928319) = 0.099999999729073022180404248512022 = ~ 0.1
Eh... in his formula, the base of your factor would be 332192831, not 3321928319, and the exponent actually tested put on top.

2006-02-19, 20:45   #292
gribozavr

Mar 2005
Internet; Ukraine, Kiev

11·37 Posts

The 100mdpp site will be down for 10-24 hours on Monday February 20th, 2006 through Thursday February 23rd due to mainteance on hosting servers. Reservations and results will be handled on the forum (I will post even my own).

The email I recieved from 5gigs:

Quote:
 Dear Valued Members, Over the past while we have worked hard to determine the best way to fix some issues that are continually plaguing some user’s accounts. After thoroughly reviewing the situation, it has been determined that the biggest problem is due to a conflict between our server architecture and the cPanel software used on all our servers. We have been in contact with cPanel trying to figure out why the software isn’t working the way it should and if there is an update coming that will correct the situation. We have not been given any confirmation on a fix anytime soon so we have no choice but to proceed with an alternate solution. This solution will involve backing up everyone’s account, backing up all databases, consolidating SQL privileges, re-configuring our servers and restoring our user’s accounts. We have spent a lot of time planning and testing this process prior to making a final decision and we are confident that things should proceed with no major problems. Starting Monday February 20th, 2006 through Thursday February 23rd, 2006, each server may be down for between 10 - 24hrs (worst case scenario) while we restore user data. User’s access to FTP and POP services will be locked from 9am Monday morning (GMT -8). Any changes you make to your account after this time using FileManager or PHP Scripts will not be restored to our newly configured servers. Regards, The 5GIGS Team

 2006-02-19, 22:58 #293 gribozavr     Mar 2005 Internet; Ukraine, Kiev 11×37 Posts Taking: 332192897 from 73 to 74 bits for myself and 332193457 from 71 to 72 bits for yasya Last fiddled with by gribozavr on 2006-02-19 at 22:59
2006-02-21, 05:46   #294

"Richard B. Woods"
Aug 2002
Wisconsin USA

22·3·641 Posts

Quote:
 Originally Posted by thechickenman Eh... in his formula, the base of your factor would be 332192831, not 3321928319, and the exponent actually tested put on top.
?

Quote:
 Originally Posted by gribozavr So, the formula becomes: [IMG]http://www.mersenneforum.org/cgi-bin/mimetex.cgi?\large{\text{POINTS} = \frac{2^{\text{END}} - 2^{START}}{2^{65}} * \frac{\text{EXPMIN}}{EXP}}[/IMG] where EXPMIN=332192831
The numerator is 332192831. The exponent actually tested is the denominator.

Exponent 3321928319 is about 10 times as large as 332192831, so trial-factoring to a given specific limit (e.g., 2^66) will take only one-tenth as long (because potential factors are ten times as far apart) so gets only one-tenth as many points for work accomplished.

Last fiddled with by cheesehead on 2006-02-21 at 06:00

 2006-02-25, 10:16 #295 gribozavr     Mar 2005 Internet; Ukraine, Kiev 11·37 Posts 332193457 from 71 to 72 bits done by yasya Taking 332193887 from 71 to 72 bits for him
 2006-02-26, 08:06 #296 Yxine     "Aleksandr" Nov 2005 Russia 2×32×5 Posts Newest version of statistics is at: http://zip.vsc-group.biz/masterprime2006.rar (638.4 KBytes). 100 Million Digits prefactor project is now added. It has it's own sheet for data, but now I look for best way to update it, so it is only initialy filled.
 2006-03-02, 20:30 #297 gribozavr     Mar 2005 Internet; Ukraine, Kiev 11×37 Posts Finally, 5gigs staff has fixed everything and http://ohmdpp.5gigs.com/ is up and running

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