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
[/code]

We lost the 3! :fusion:

[QUOTE=akruppa;287067]We lost the 3! :fusion:[/QUOTE]
Ok, now all we need is to loose the "1" from the "17" that appears the last three terms (.2900-.2902) :sirrobin:

[QUOTE=LaurV;287084]Ok, now all we need is to loose the "1" from the "17" that appears the last three terms (.2900-.2902) :sirrobin:[/QUOTE]

Don't wake a sleeping bear.
:bear:

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

c147: 1000@11e6

c147: 3000@1e6; 3500@11e6

c147: +1000@11e6 (total 2000)

I will run polynomial selection overnight.

3600@44M

c147: +1000@11e6 (total 3000)

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...