mersenneforum.org Factoring EM47
 Register FAQ Search Today's Posts Mark Forums Read

 2012-09-20, 11:26 #78 jcrombie     "Jonathan" Jul 2010 In a tangled web... 2×107 Posts EM49 If nobody minds, I'll do a t50 for EM49. (btw, this p40 popped out '5842966029407021014599055873297934604473' already) (cofactor still composite though)
2012-09-20, 12:03   #79
axn

Jun 2003

32×19×29 Posts

Quote:
 Originally Posted by jcrombie If nobody minds, I'll do a t50 for EM49. (btw, this p40 popped out '5842966029407021014599055873297934604473' already) (cofactor still composite though)
I must be particularly dense, but I can't seem to get it to divide the number. Isn't the target number 9682...8645011 (335 digits)? Your factor seems to divide 9682...9030929.

EDIT:- Of course, I am! You're not talking about the last item in the sequence, but 49th one.

Last fiddled with by axn on 2012-09-20 at 12:06

2012-09-23, 14:47   #80
jcrombie

"Jonathan"
Jul 2010
In a tangled web...

110101102 Posts

Quote:
 Originally Posted by jcrombie If nobody minds, I'll do a t50 for EM49. (btw, this p40 popped out '5842966029407021014599055873297934604473' already) (cofactor still composite though)
The t50 for EM49 finished uneventfully.

I happened to see a post that EM52 might be too "boring" .
It would be no trouble to finish it (hint,hint).

2012-09-23, 16:42   #81
Dubslow

"Bunslow the Bold"
Jun 2011
40<A<43 -89<O<-88

3×29×83 Posts

Quote:
 Originally Posted by jcrombie The t50 for EM49 finished uneventfully. I happened to see a post that EM52 might be too "boring" . It would be no trouble to finish it (hint,hint).
5072 curves left to do at 43M for t50.

2012-09-23, 17:06   #82
jcrombie

"Jonathan"
Jul 2010
In a tangled web...

21410 Posts

Quote:
 Originally Posted by Dubslow 5072 curves left to do at 43M for t50.
Starting it now.

 2012-09-27, 01:28 #83 jcrombie     "Jonathan" Jul 2010 In a tangled web... 2×107 Posts EM52 t50 done added 5203 at B1=43e6 curves for EM52, so one t50 is done now. (Taking a break for a while.)
 2014-07-21, 17:02 #84 wombatman I moo ablest echo power!     May 2013 6D116 Posts Apologies for dredging this thread up, but I've been doing a little work on the EM-52 number (the C335 found here in the 1st table). Thus far I've run a full t55--17,884 at B1=110e6--and I'm 1061 curves into a t60. I figured I would post this in case anybody else felt inclined to throw a few curves toward it, or in case somebody else has already done work that pushed past where I am currently.
2014-07-22, 06:05   #85
jcrombie

"Jonathan"
Jul 2010
In a tangled web...

110101102 Posts

Quote:
 Originally Posted by wombatman ... in case somebody else has already done work that pushed past where I am currently.
No new curves past the Sept 26, 2012 post. (And I've got a lot on my plate right now, so nothing planned for the near future.) Thanks for the update though and the work