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-   -   Sequence terminations and merges (https://www.mersenneforum.org/showthread.php?t=11837)

schickel 2011-12-26 05:18

No termination news from me :down:

Just a mention that we're down to one week left in 2011. Left's see if we can finish the year with a bang....

Hope you all had a wonderful Christmas and here's hoping for a better 2012!

bchaffin 2011-12-26 19:31

1 Attachment(s)
[QUOTE=schickel;283525]
Just a mention that we're down to one week left in 2011. Left's see if we can finish the year with a bang....
[/QUOTE]

Well, since you asked so nicely... :smile:

644664.3882 merges with 37632.2. One more down in 2011!

Batalov 2011-12-30 20:33

One more for 2011!

After a neat escape
[CODE]3426 . c80 = 40236817721850762807508921629335183612707383109636337998548878148183661508871568 = 2^4 * 31^2 * 2616858592732229631081485537807959392085547808899345603443605498711216279193
3427 . c80 = 40317940338225461926072447681007230353862035091712217712255629918643709213557334 = 2 * 31^2 * 1013 * 533755382588847238621 * 38796561973660030085213325158999327265949569193496939
[/CODE]
[URL="http://www.factordb.com/aliquot.php?type=1&aq=207984"]207984[/URL] merges with 53802. :xmastree:

schickel 2011-12-30 21:07

[QUOTE=Batalov;284110]One more for 2011!

After a neat escape
[CODE]3426 . c80 = 40236817721850762807508921629335183612707383109636337998548878148183661508871568 = 2^4 * 31^2 * 2616858592732229631081485537807959392085547808899345603443605498711216279193
3427 . c80 = 40317940338225461926072447681007230353862035091712217712255629918643709213557334 = 2 * 31^2 * 1013 * 533755382588847238621 * 38796561973660030085213325158999327265949569193496939
[/CODE]
[URL="http://www.factordb.com/aliquot.php?type=1&aq=207984"]207984[/URL] merges with 53802. :xmastree:[/QUOTE]That is a nice escape, straight from 2^4 * 31 to the downdriver!

I'll add it to the list.....barring an extremely lucky strike for someone else, this is the last for 2011!

:party: Party like it's 2012...

schickel 2011-12-31 03:24

Updated....and a size check on the post shows that we're good to go: we can get (almost) as many terminations/merges in 2012 as are in the top post now and still fit them all into one post.... :grin:

bchaffin 2012-01-09 17:40

1 Attachment(s)
Here's one to start off the new year:

224560 terminates in 3185 terms, after a bumpy ride down from 113 digits.

RobertS 2012-01-12 18:17

While running my old "find_merges" script, I've noticed that:
241506 merges with 4800
816792 merges with 36348 (reserved by Greepley)
correct?

bchaffin 2012-01-12 18:43

1 Attachment(s)
[QUOTE=RobertS;286072]While running my old "find_merges" script, I've noticed that:
241506 merges with 4800
816792 merges with 36348 (reserved by Greepley)
correct?[/QUOTE]

Yep, I just found 241506 last night:
241506.2822 merges with 4800.7

I noticed 816792 a couple weeks ago also (it should actually be credited to 2011). I didn't say anything at the time and then I couldn't remember which sequence it was so I just figured it would turn up eventually. Which it has. :smile: I assume Greebley found the merge, but his last post was Oct. 19th.

schickel 2012-01-12 19:44

[QUOTE=RobertS;286072]While running my old "find_merges" script, I've noticed that:
241506 merges with 4800
816792 merges with 36348 (reserved by Greepley)
correct?[/QUOTE]

[QUOTE=bchaffin;286075]Yep, I just found 241506 last night:
241506.2822 merges with 4800.7

I noticed 816792 a couple weeks ago also (it should actually be credited to 2011). I didn't say anything at the time and then I couldn't remember which sequence it was so I just figured it would turn up eventually. Which it has. :smile: I assume Greebley found the merge, but his last post was Oct. 19th.[/QUOTE]Ooooh, nice ones.

schickel 2012-01-13 02:29

[QUOTE=bchaffin;286075]Yep, I just found 241506 last night:
241506.2822 merges with 4800.7[/quote]I assume that when you say "I found..." you mean your workers turned it up, correct?[quote]I noticed 816792 a couple weeks ago also (it should actually be credited to 2011). I didn't say anything at the time and then I couldn't remember which sequence it was so I just figured it would turn up eventually. Which it has. :smile: I assume Greebley found the merge, but his last post was Oct. 19th.[/QUOTE]That's interesting, becuase on 12/14 I had [URL="http://www.mersenneforum.org/showthread.php?p=282160&highlight=816792#post282160"]posted[/URL] some excerpts from the overall status in the updates thread and included this line:[code]816792 1186. sz 118 2 * 5 * 53[/code]So I had caught it just after it started its first plunge down the downdriver slope.....

bchaffin 2012-01-13 18:00

[QUOTE=schickel;286104]I assume that when you say "I found..." you mean your workers turned it up, correct?[/QUOTE]

Yes, in true capitalist style I don't do anything myself, my workers do it all for me. :smile: I've had much more success in terminations by following the workers' simple rules than by trying to pick winners myself... I'm sure there's some life lesson in there but I don't seem to be learning it.


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