mersenneforum.org  

Go Back   mersenneforum.org > Factoring Projects > FactorDB

Reply
 
Thread Tools
Old 2012-02-15, 20:23   #1365
Andi47
 
Andi47's Avatar
 
Oct 2004
Austria

248210 Posts
Default

Hmmm.... seems there seems to be that "double-check primality" and "double-check sequence" buttons would be needed for registered users?

Last fiddled with by Andi47 on 2012-02-15 at 20:24 Reason: added missing word
Andi47 is offline   Reply With Quote
Old 2012-02-17, 17:12   #1366
bchaffin
 
Sep 2010
Portland, OR

22·3·31 Posts
Default

878560 is another broken Aliquot sequence -- it thinks 531754410288614879 is prime.

Also 363270.
bchaffin is offline   Reply With Quote
Old 2012-02-23, 12:42   #1367
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2·1,061 Posts
Default

I turned up some more problem sequences when I pulled the latest status.

There seem to be these that have problems:
Code:
75402   i2501 has a composite marked as prime
174888  i142->i143 (found by bchaffin)
363270  i261->i262 (found by bchaffin)
459980  i422->i423
700128  i230->i231
722430  i214 has a composite marked as prime
864792  i250->i251
Additionally, I don't find any problem with 878560 (noted by bhcaffin), at least with a quick check. I'll run a more thorough test on it to check.....

Last fiddled with by schickel on 2012-02-23 at 12:43 Reason: Correcting an error I made in a sequence error
schickel is offline   Reply With Quote
Old 2012-02-23, 14:07   #1368
EdH
 
EdH's Avatar
 
"Ed Hall"
Dec 2009
Adirondack Mtns

47×79 Posts
Default

Quote:
Originally Posted by schickel View Post
...
Additionally, I don't find any problem with 878560 (noted by bhcaffin), at least with a quick check. I'll run a more thorough test on it to check.....
Aliqueit likes the db .elf file, here... Is something more than that needed?
EdH is offline   Reply With Quote
Old 2012-02-24, 01:36   #1369
schickel
 
schickel's Avatar
 
"Frank <^>"
Dec 2004
CDP Janesville

2×1,061 Posts
Default

Quote:
Originally Posted by EdH View Post
Aliqueit likes the db .elf file, here... Is something more than that needed?
I don't know....I was just responding to an error report earlier by bchaffin. Maybe it fixed itself?
schickel is offline   Reply With Quote
Old 2012-02-24, 17:18   #1370
chris2be8
 
chris2be8's Avatar
 
Sep 2009

23·3·5·17 Posts
Default

Quote:
Originally Posted by Syd View Post
First I´ll check if the db runs stable without overloading the server. When this is done the scan buttons will be activated again.
Could you use Dario Alpern's ecm applet from http://www.alpertron.com.ar/ECM.HTM or something like that for the scan buttons. That would do the work on the requesters system.

Chris K
chris2be8 is offline   Reply With Quote
Old 2012-03-08, 19:28   #1371
Stargate38
 
Stargate38's Avatar
 
"Daniel Jackson"
May 2011
14285714285714285714

2×52×13 Posts
Default

Why am I getting a "you have reached the hourly limit of 3000 ID's created" message even though I am logged in? It shouldn't say that.
Stargate38 is offline   Reply With Quote
Old 2012-03-08, 19:55   #1372
firejuggler
 
firejuggler's Avatar
 
Apr 2010
Over the rainbow

22×641 Posts
Default

another problem I noticed is
http://factordb.com/index.php?id=1100000000489773674 , a 638 digits prp, cert uploaded the 16 february( by me) and verified, but still considered as a prp
firejuggler is online now   Reply With Quote
Old 2012-03-08, 21:17   #1373
Stargate38
 
Stargate38's Avatar
 
"Daniel Jackson"
May 2011
14285714285714285714

2·52·13 Posts
Default

I have that problem too. When I was trying to prove a 400+ digit prime, I uploaded the cert and it said it was successfully processed (it even said "P" beside it), but it didn't say "Proven by Certificate".
Stargate38 is offline   Reply With Quote
Old 2012-03-15, 14:32   #1374
Greebley
 
Greebley's Avatar
 
May 2009
Dedham Massachusetts USA

3·281 Posts
Default

The aliquot sequence 979884 is also having an issue at index 331 to 332:

331 33 (show) 180539934906725323309899308491200<33> = 2^6 · 3^2 · 5^2 · 17 · 1594674553<10> · 462476643092266223<18>
The final 18 digit number is not prime:
http://factorization.ath.cx/index.ph...76643092266223

Oddly, this link doesn't lead to a consistent value for me - Sometimes I get the number = itself and the other times I get the factorization into two primes. Its like there are two entries that it can choose from. In any case the aliquot sequence has the wrong one.
Greebley is offline   Reply With Quote
Old 2012-03-16, 20:30   #1375
miiriim
 
Mar 2012

1 Posts
Default Home prime data out of date

Kind of rushed in library here, so probably there is a better thread than this one (apologies). Just want to bring to any regular editor's attention that there has been significant change in the situation regarding the home-prime sequence of 49 (not solved, just more iterates complete) since the page dealing with that was last edited here. If anybody with time on his/her hands for some simple editing would like to post the new status of the problem, that up-to-date info can be found (and easily checked) at www.worldofnumbers.com (It is called topic 1, but you will have to go down the main page to find it, because the site primarily concerns palindromes). Thanks. I will do myself some day if it remains.
miiriim 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 20:06.

Sat May 8 20:06:31 UTC 2021 up 30 days, 14:47, 0 users, load averages: 2.17, 2.28, 2.56

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.