Reserved for MF - Sequence 4788 - Page 137

EdH · 2012-01-21, 15:28

I guess one of my machines found something overnight for i2883:

Code:

[Jan 20 2012, 23:52:04] c136: running 1218 ecm curves at B1=11e6...
Curve 2:
Using B1=11000000, B2=35133391030, polynomial Dickson(12), sigma=4074077776
Step 1 took 181411ms
Step 2 took 59136ms
********** Factor found in step 2: 504473322692355276852610423345559

akruppa · 2012-01-23, 21:20

We lost the 3!

LaurV · 2012-01-24, 02:34

Quote:

Originally Posted by akruppa

We lost the 3!

Ok, now all we need is to loose the "1" from the "17" that appears the last three terms (.2900-.2902)

Andi47 · 2012-01-24, 05:34

Quote:

Originally Posted by LaurV

Ok, now all we need is to loose the "1" from the "17" that appears the last three terms (.2900-.2902)

Don't wake a sleeping bear.

btw, I'd prefer losing one or two specimens of that even prime.

EdH · 2012-01-24, 15:39

c147: 1000@11e6

RobertS · 2012-01-24, 16:19

c147: 3000@1e6; 3500@11e6

EdH · 2012-01-25, 04:22

c147: +1000@11e6 (total 2000)

jrk · 2012-01-25, 04:39

I will run polynomial selection overnight.

akruppa · 2012-01-25, 13:48

3600@44M

EdH · 2012-01-25, 16:52

c147: +1000@11e6 (total 3000)

EdH · 2012-01-26, 05:14

In case it matters, c147 +1000 more @ 11e6 (total 4000)

I will evaluate tomorrow, whether I can sieve at any appreciable rate with any of my current machines. I've been too slow in the past...

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2012-01-23, 21:20	#1498
akruppa "Nancy" Aug 2002 Alexandria 2,467 Posts	We lost the 3!

2012-01-24, 15:39	#1501
EdH "Ed Hall" Dec 2009 Adirondack Mtns 23×167 Posts	c147: 1000@11e6

2012-01-24, 16:19	#1502
RobertS Aug 2009 somewhere C5₁₆ Posts	c147: 3000@1e6; 3500@11e6

2012-01-25, 04:22	#1503
EdH "Ed Hall" Dec 2009 Adirondack Mtns 23·167 Posts	c147: +1000@11e6 (total 2000)

2012-01-25, 04:39	#1504
jrk May 2008 10001000111₂ Posts	I will run polynomial selection overnight.

2012-01-25, 13:48	#1505
akruppa "Nancy" Aug 2002 Alexandria 2,467 Posts	3600@44M

2012-01-25, 16:52	#1506
EdH "Ed Hall" Dec 2009 Adirondack Mtns 23·167 Posts	c147: +1000@11e6 (total 3000)

2012-01-26, 05:14	#1507
EdH "Ed Hall" Dec 2009 Adirondack Mtns 23·167 Posts	In case it matters, c147 +1000 more @ 11e6 (total 4000) I will evaluate tomorrow, whether I can sieve at any appreciable rate with any of my current machines. I've been too slow in the past...