mersenneforum.org Team sieve #2: c136 from 4788:2381
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2009-04-27, 06:31   #100
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3·2,083 Posts

I am pleased to announce that the postprocessing for this job is finally complete. The factorization of sequence 4788, line 2381, is:

Code:
2381. 494971482475526330124317622685597917541823728848190330550517426954120092476547103666010616743406121936258712976665311787165277173451651329491371568 = 2^4 * 3 * 17 * 239 * 516127 * 1563440761900858657520258100740092791054824661414521843717 * 3145242307596444076700740622189201742377017336699201870940540745667136058929773
Namely, a P58*P79 factorization for the C136.

The full postprocessing log is attached.

I'll continue to crank the next few lines on the sequence with Syd's workers until they run into something they can't crack.
Attached Files
 postprocessing-log.zip (2.6 KB, 132 views)

Last fiddled with by mdettweiler on 2009-04-27 at 06:33 Reason: whoops, forgot to attach the postprocessing log...

2009-04-27, 06:33   #101
henryzz
Just call me Henry

"David"
Sep 2007
Cambridge (GMT/BST)

10111001100012 Posts

Quote:
 Originally Posted by mdettweiler The full postprocessing log is attached.
no it isn't

2009-04-27, 06:33   #102
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3·2,083 Posts

Quote:
 Originally Posted by henryzz no it isn't
Ah, you caught that one very quickly. Actually I was in the middle of editing the post to attach it when you posted about it.

2009-04-27, 06:35   #103
henryzz
Just call me Henry

"David"
Sep 2007
Cambridge (GMT/BST)

3×1,979 Posts

Quote:
 Originally Posted by mdettweiler Ah, you caught that one very quickly. Actually I was in the middle of editing the post to attach it when you posted about it.
when i send emails with attachments i really often forget to attach the attachment first time

2009-04-27, 06:41   #104
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3·2,083 Posts

Quote:
 Originally Posted by henryzz when i send emails with attachments i really often forget to attach the attachment first time
Yeah, me too. (lol) A while back Gmail (which I use for my primary email address) added a new "Labs" (experimental) feature called the "Forgotten Attachment Detector" or something like that. It looks for words in a message like "attached", "attachment", etc., and if there isn't an attachment on the message when you try to send it, it will pop up a little box saying "Are you sure you want to send this message without attachments?". I've had it kick in a number of times since I first enabled it--definitely quite handy.

I'm pretty sure there are similar programs available for Outlook/(Express), Thunderbird, etc. The only thing that's missing is a feature in vBulletin that does the same for forum posts!

2009-04-27, 06:46   #105
jrk

May 2008

21078 Posts

Quote:
 Originally Posted by mdettweiler a P58*P79 factorization for the C136.
Good.

2009-04-27, 06:54   #106
schickel

"Frank <^>"
Dec 2004
CDP Janesville

212210 Posts

Quote:
 Originally Posted by mdettweiler I am pleased to announce that the postprocessing for this job is finally complete. The factorization of sequence 4788, line 2381, is: Code: 2381. 494971482475526330124317622685597917541823728848190330550517426954120092476547103666010616743406121936258712976665311787165277173451651329491371568 = 2^4 * 3 * 17 * 239 * 516127 * 1563440761900858657520258100740092791054824661414521843717 * 3145242307596444076700740622189201742377017336699201870940540745667136058929773 Namely, a P58*P79 factorization for the C136.
Nice split! Many thanks to jrk, Andi47, and Henryzz for the heavy lifting on this one.......

 2009-04-27, 06:56 #107 10metreh     Nov 2008 2·33·43 Posts Next line has a C131...

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