Factoring database - Page 134

firejuggler · 2013-01-30, 21:50

working on C74 right now

chris2be8 · 2013-02-01, 17:49

A lot of the small composites look as if they come from OddPerfect.org (p^q-1 for prime p and q). I'm working my way though them with SNFS.

Chris

Syd · 2013-02-02, 01:13

Hello everyone!

I´m sorry for the problems with the factordb, plus I´ve been quite busy lately and couldnt find time to fix the issues.

The problem seem to be some numbers which were accepted as valid - but when parsed later on, they throw a "not divisible" error.

For example:
50^308%(10^19-1)/9

This error also causes the workers to exit - once they hit such a number. Page processing also stops - leaving an short status page and so on.

I´ll try to find out how this numbers could make it through now - guess some bug within the optimizer again - and give some status update here.

Stargate38 · 2013-02-02, 14:23

1013383540072335525=3*5^2*13511780534297807 keeps giving a "not divisible error". Can you fix this? (It's the number in the previous post.)

LaurV · 2013-02-04, 10:16

Quote:

Originally Posted by Syd

Hello everyone!

Hi Syd, welcome back! Now, if you are here, can you fix aliquot sequence 747720? (as the only one which is still wrong on the DB, AFAIK).
Thanks.

fivemack · 2013-02-05, 20:29

It seems that if you enter, for a number X, a potential-factor F which does not divide X but which does divide some other number in the database, the error message is 'factor already known' rather than 'does not divide'.

cmd · 2013-02-10, 14:27

Quote:

Originally Posted by Syd

Sure. Just one or maybe some more?

first 5 ... &
last 3 is best for compatibility with view M numbers
sample

M607

now
P 183 (show) 2^607-1<183> = 5311379928...27<183>

then
P 183 (show) 2^607-1<183> = 53113...127<183>
-----------------------------------------------------------^^^

T|-|><

Stargate38 · 2013-02-10, 14:51

Where did these numbers come from?

http://www.factordb.com/index.php?id...00000584147045
http://www.factordb.com/index.php?id...00000584146241
http://www.factordb.com/index.php?id...00000584144365
http://www.factordb.com/index.php?id...00000584143273

YuL · 2013-02-10, 19:45

Quote:

Originally Posted by Stargate38

Where did these numbers come from?

http://www.factordb.com/index.php?id...00000584147045
http://www.factordb.com/index.php?id...00000584146241
http://www.factordb.com/index.php?id...00000584144365
http://www.factordb.com/index.php?id...00000584143273

http://www.factordb.com/index.php?id...00000584143273 equals the number of partitions of 120052058 p(120052058).
http://www.factordb.com/index.php?id...00000584144365 equals the number of partitions of 100077222 p(100077222).
Don't know about the first two.

rcv · 2013-02-11, 16:01

Quote:

Originally Posted by YuL

Don't know about the first two.

Top 4 on this list.

firejuggler · 2013-02-17, 00:36

back to normal

2013-02-02, 14:23	#1467
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 3·13·17 Posts	1013383540072335525=35^213511780534297807 keeps giving a "not divisible error". Can you fix this? (It's the number in the previous post.) Last fiddled with by Stargate38 on 2013-02-02 at 14:26 Reason: forgot factors.

2013-02-05, 20:29	#1469
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 7²×131 Posts	Another slightly weird issue It seems that if you enter, for a number X, a potential-factor F which does not divide X but which does divide some other number in the database, the error message is 'factor already known' rather than 'does not divide'.

2013-02-10, 14:51	#1471
Stargate38 "Daniel Jackson" May 2011 14285714285714285714 1010010111₂ Posts	Where did these 10000+ digit primes come from? Where did these numbers come from? http://www.factordb.com/index.php?id...00000584147045 http://www.factordb.com/index.php?id...00000584146241 http://www.factordb.com/index.php?id...00000584144365 http://www.factordb.com/index.php?id...00000584143273

2013-02-17, 00:36	#1474
firejuggler Apr 2010 Over the rainbow 2³·5²·13 Posts	back to normal Last fiddled with by firejuggler on 2013-02-17 at 00:38

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

2013-01-30, 21:50	#1464
firejuggler Apr 2010 Over the rainbow 2³×5²×13 Posts	working on C74 right now

2013-02-01, 17:49	#1465
chris2be8 Sep 2009 2·1,039 Posts	A lot of the small composites look as if they come from OddPerfect.org (p^q-1 for prime p and q). I'm working my way though them with SNFS. Chris

2013-02-02, 01:13	#1466
Syd Sep 2008 Krefeld, Germany E6₁₆ Posts	Hello everyone! I´m sorry for the problems with the factordb, plus I´ve been quite busy lately and couldnt find time to fix the issues. The problem seem to be some numbers which were accepted as valid - but when parsed later on, they throw a "not divisible" error. For example: 50^308%(10^19-1)/9 This error also causes the workers to exit - once they hit such a number. Page processing also stops - leaving an short status page and so on. I´ll try to find out how this numbers could make it through now - guess some bug within the optimizer again - and give some status update here.