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-   -   Team sieve #2: c136 from 4788:2381 (https://www.mersenneforum.org/showthread.php?t=11690)

mdettweiler 2009-04-27 06:31

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

[code]2381. 494971482475526330124317622685597917541823728848190330550517426954120092476547103666010616743406121936258712976665311787165277173451651329491371568 = 2^4 * 3 * 17 * 239 * 516127 * 1563440761900858657520258100740092791054824661414521843717 * 3145242307596444076700740622189201742377017336699201870940540745667136058929773[/code]

Namely, a P58*P79 factorization for the C136.

The full postprocessing log is attached. :smile:

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.

henryzz 2009-04-27 06:33

[quote=mdettweiler;171100] The full postprocessing log is attached. :smile:[/quote]
no it isn't

mdettweiler 2009-04-27 06:33

[quote=henryzz;171101]no it isn't[/quote]
Ah, you caught that one very quickly. :smile: Actually I was in the middle of editing the post to attach it when you posted about it.

henryzz 2009-04-27 06:35

[quote=mdettweiler;171102]Ah, you caught that one very quickly. :smile: Actually I was in the middle of editing the post to attach it when you posted about it.[/quote]
when i send emails with attachments i really often forget to attach the attachment first time:smile:

mdettweiler 2009-04-27 06:41

[quote=henryzz;171104]when i send emails with attachments i really often forget to attach the attachment first time:smile:[/quote]
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. :smile:

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! :smile:

jrk 2009-04-27 06:46

[QUOTE=mdettweiler;171100]a P58*P79 factorization for the C136.[/QUOTE]
Good.

schickel 2009-04-27 06:54

[QUOTE=mdettweiler;171100]I am pleased to announce that the postprocessing for this job is finally complete. :grin: The factorization of sequence 4788, line 2381, is:

[code]2381. 494971482475526330124317622685597917541823728848190330550517426954120092476547103666010616743406121936258712976665311787165277173451651329491371568 = 2^4 * 3 * 17 * 239 * 516127 * 1563440761900858657520258100740092791054824661414521843717 * 3145242307596444076700740622189201742377017336699201870940540745667136058929773[/code]

Namely, a P58*P79 factorization for the C136.[/QUOTE]Nice split! Many thanks to jrk, Andi47, and Henryzz for the heavy lifting on this one.......

:bow wave::bow wave:

10metreh 2009-04-27 06:56

Next line has a C131...


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