mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > FactorDB

Reply
 
Thread Tools
Old 2011-08-16, 15:18   #1167
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2×1,061 Posts
Default

Quote:
Originally Posted by LaurV View Post
Thanks for clarifying it. Now it makes more sense. The link I still can't access but it could be something with the company's firewall. Maybe they saw my last days activity, they didn't know what is it, and cut me off.

@yoyo
Sorry I got fussy. One of those days...
It could have something to do with the domain. Try substituting factordb.com for factorization.ath.cx in the connection string.
Quote:
Originally Posted by yoyo View Post
I just run the Perlscript over night on 2 cores. Now the smallest composite with unknown factor has 82 digits.
I wondered who was doing so much work.....
Quote:
If anybody is interested I can also provide a binary, than you don't need a Perl installation on your Windows.
yoyo
Maybe this is the better solution for you, LaurV....
schickel is offline   Reply With Quote
Old 2011-08-16, 17:32   #1168
Andi_HB
 
Andi_HB's Avatar
 
Mar 2007
Germany

23×3×11 Posts
Default

Quote:
Originally Posted by schickel View Post
I wondered who was doing so much work.....
My Core2 was also running last night and have done a lot of 82digit numbers.
I will start it tonight again using this script http://www.mersenneforum.org/showpos...&postcount=894

Last fiddled with by Andi_HB on 2011-08-16 at 17:41
Andi_HB is offline   Reply With Quote
Old 2011-08-16, 20:55   #1169
cmd
 
cmd's Avatar
 
"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

3E716 Posts
Lightbulb

\/\/°\/\/
Attached Thumbnails
Click image for larger version

Name:	syd_wellway.PNG
Views:	102
Size:	77.9 KB
ID:	6906  
cmd is offline   Reply With Quote
Old 2011-08-17, 21:50   #1170
wblipp
 
wblipp's Avatar
 
"William"
May 2003
New Haven

23·5·59 Posts
Default

Trial Factoring is sometimes missed.

I've been browsing through the PRPs, helping the database find N-1 and N+1 proofs. Usually the help I provide is to show factorizations the database didn't find on its own. The most severe of these seems to be a failure to trial factor. I've left one example unhelped to show the problem.

(19+2557#)/19 has a simple N-1 proof because N-1 is 2557#/19. The trial factoring should completely factor this, but it does not. It's easy to manually enter factors (based on other examples, 1000#/19 followed by 2000#/19 will probably result in a complete factorization). But shouldn't the trial factoring have taken care of this?
wblipp is offline   Reply With Quote
Old 2011-08-17, 22:16   #1171
cmd
 
cmd's Avatar
 
"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

17478 Posts
Cool

try increases
Attached Thumbnails
Click image for larger version

Name:	wblipp_why_1082.PNG
Views:	98
Size:	50.8 KB
ID:	6910  
cmd is offline   Reply With Quote
Old 2011-08-17, 22:46   #1172
wblipp
 
wblipp's Avatar
 
"William"
May 2003
New Haven

23×5×59 Posts
Default

cmd,

The small factors of 7 and 8 digits were probably already known before you reported the the two factors of 1082 digits. The database removed these factors from the C1082s, resulting in the C1066 and C1076.
wblipp is offline   Reply With Quote
Old 2011-08-18, 00:16   #1173
cmd
 
cmd's Avatar
 
"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

11111001112 Posts
Thumbs up try increases next

Quote:
Originally Posted by wblipp View Post
cmd,

The small factors of 7 and 8 digits were probably already known before you reported the the two factors of 1082 digits. The database removed these factors from the C1082s, resulting in the C1066 and C1076.

_|_|_|_|_|_
_:_^_|_|_|_

Pr-p Pr-?



ps : ( We apologize for the fact to show c1082
We sometimes use the left to make a joke of "trick" (our old habits) ... next post mirror horizontally and look good for prp1083 )
Attached Thumbnails
Click image for larger version

Name:	wblipp_pr-P_1082.PNG
Views:	83
Size:	26.1 KB
ID:	6911  

Last fiddled with by cmd on 2011-08-18 at 00:57 Reason: "SandyBrown" -
cmd is offline   Reply With Quote
Old 2011-08-18, 00:46   #1174
rekcahx
 
Oct 2009
Oulu, Finland

3010 Posts
Default

Currently my uploading script is pushing my results for 90 digit composites. Before I started uploading, the composites distribution listed over 7500 such composites...
rekcahx is offline   Reply With Quote
Old 2011-08-18, 01:19   #1175
cmd
 
cmd's Avatar
 
"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

33×37 Posts
Default

...factorization.ath.cx...?showid=1100000000003937045

len(1083)

<<<<
Attached Thumbnails
Click image for larger version

Name:	wblipp_prP_1083.PNG
Views:	91
Size:	30.3 KB
ID:	6912  
cmd is offline   Reply With Quote
Old 2011-08-18, 01:30   #1176
firejuggler
 
firejuggler's Avatar
 
Apr 2010
Over the rainbow

2×1,259 Posts
Default

you know, cmd, you make no sense. the only problem i see there is that it is mirrored and upside down, wich is caused by you.
firejuggler is offline   Reply With Quote
Old 2011-08-18, 01:54   #1177
cmd
 
cmd's Avatar
 
"(^r'°:.:)^n;e'e"
Nov 2008
;t:.:;^

33·37 Posts
Talking

Quote:
Originally Posted by firejuggler View Post
you know, cmd, you make no sense. the only problem i see there is that it is mirrored and upside down, wich is caused by you.
"Lark's brother" often make use of mirror ...
You should also use fishing line behind you to remove your pants, but the first 'Remember to remove "the fish"

|°|
cmd is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Database for k-b-b's: 3.14159 Miscellaneous Math 325 2016-04-09 17:45
Factoring database issues Mini-Geek Factoring 5 2009-07-01 11:51
database.zip HiddenWarrior Data 1 2004-03-29 03:53
Database layout Prime95 PrimeNet 1 2003-01-18 00:49
Is there a performance database? Joe O Lounge 35 2002-09-06 20:19

All times are UTC. The time now is 01:27.

Wed Jan 20 01:27:29 UTC 2021 up 47 days, 21:38, 0 users, load averages: 2.23, 1.95, 1.90

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.