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-   -   Subproject #11: 2^2 * 3 - Lose the '3' (https://www.mersenneforum.org/showthread.php?t=16075)

gd_barnes 2011-12-20 06:10

[QUOTE=MyDogBuster;281467]Releasing 738144 @ i=1436 C134 - Going no where but up[/QUOTE]

:orly owl:


Care to revise that statement?

LaurV 2011-12-20 06:30

Wow! wonderful break! This would be a lesson to "never let out of your hands a sequence with no certain driver", no matter how high it is, or what is its guide. Congrats gd!

unconnected 2011-12-20 07:49

998608 dropped 3 after few iterations. I'll run it further.

EdH 2011-12-21 04:34

[URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=326382&action=last20&fr=0&to=100"]326382[/URL] and [URL="http://www.factordb.com/sequences.php?se=1&eff=2&aq=146982&action=last20&fr=0&to=100"]146982[/URL] have both dropped their 3s and are currently sitting with 2^2 and large cofactors. Moving them to the main reservations.

bchaffin 2011-12-21 04:43

Reserving 572514.

Releasing 950436. It picked up the downdriver at 143 digits, but sadly only decreased to 133 digits before getting 2^2*7. Now at term 3639, size 138.

Andi47 2011-12-25 06:21

sequence 869400 lost the 3....

....and got it right back a few lines later.

I'll keep it for now, and I have uploaded the current status to the DB.

firejuggler 2011-12-26 19:54

taking 266136

EdH 2011-12-27 05:29

reserving 921336

rajula 2011-12-27 09:13

Because someone else is also playing around with 344136 I will drop it. No fun in factoring numbers with my current very limited resources only to notice that the same factors have been submitted just before I am finished (a C116 this time)... :no:

344136 is now c122 = 2[SUP]2[/SUP] * 31 * 507809 * c114. (Someone with more than just one core might want to see how long that 2[SUP]2[/SUP] lasts.)

I might return to aliquot sequences when I have enough resources to keep ahead of possible poachers (or other such).

10metreh 2011-12-27 10:04

Someone or something seems to hunt for downdrivers and stable sequences and work on them regardless of whether they are reserved or not, and regardless of the fact that if they terminate the sequence, the person who had it reserved will get the credit.

I think the safest method is not to submit lines to the DB when the sequence is stable and has a downdriver. If this is too difficult, always leave the DB status slightly behind your status so that mystery workers have to factor a large composite that you have already done.

smh 2011-12-28 13:18

Releasing 382626


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