[QUOTE=Batalov;244039][FONT=Arial Narrow]...running P-1 at B1=43e7...
Using B1=430000000, B2=49610656915762, polynomial x^1, x0=1602510673
Step 1 took 189259ms
Step 2 took 99911ms
********** Factor found in step 2: 48821680136174685466077136360447757658169884461142263
[/FONT]
[FONT=Arial Narrow][Dec 30 2010, 15:44:10] *** Neat 53-digit factor found: 48821680136174685466077136360447757658169884461142263
[/FONT][/QUOTE]

Nice! This one goes to rank #5 in the alltime top 10! :bow wave:

Have you emailed Paul Zimmermann?

Of course. :smile:

A c150 is next.
Started the latest CPU polyselect (and the full t45 in parallel), let's see how good it is.

[QUOTE=Batalov;244087]A c150 is next.
Started the latest CPU polyselect (and the full t45 in parallel), let's see how good it is.[/QUOTE]

Hmmm.... the DB has 2^4*p9*p20*p28*c118 at iteration 2614 - is this also your latest iteration? has your intended t45 pulled the p28?

Scratch that. Too late, could not edit.
c150 was in i2613 - pulled a p43 before a poly was selected.

Now, a c134 in i2615 - ...anyway, just [URL="http://factordb.com/sequences.php?se=1&eff=2&aq=4788&action=last20&fr=0&to=100"]check the DB[/URL]. I will be hacking.

Now, a c172 in i2617, -- here's where I get off the train (after finishing all 11e6 curves); take it away with 43e6 curves and so on.

[QUOTE=Batalov;244103]Now, a c172 in i2617, -- here's where I get off the train (after finishing all 11e6 curves); take it away with 43e6 curves and so on.[/QUOTE]I'll run some slow 43M curves (maybe 24 curves/day....)

92 curves @ 43e6 done - no factor

50 curves at B1=11e7, no factor.

The c172 factored as [URL="http://www.mersenneforum.org/showpost.php?p=252984&postcount=64"]p65*p107[/URL]. The next line is slightly larger, still with 2^4, and a c155.....

With only a few minutes to spare I didn't have time to divide things up intelligently, so I just started aliqueit and yafu on the c155 independently on two different machines. So far aliqueit has done:

c155: running 74 ecm curves at B1=11e3...
c155: running 214 ecm curves at B1=5e4...
c155: running 430 ecm curves at B1=25e4...
c155: running 904 ecm curves at B1=1e6...
c155: running 2350 ecm curves at B1=3e6...
c155: running 4480 ecm curves at B1=11e6...
plus ~250 at B1=43e6

And yafu has done:

ecm: 25/25 curves on C155 input, at B1 = 2K, B2 = gmp-ecm default
ecm: 96/96 curves on C155 input, at B1 = 11K, B2 = gmp-ecm default
ecm: 204/204 curves on C155 input, at B1 = 50K, B2 = gmp-ecm default
ecm: 408/408 curves on C155 input, at B1 = 250K, B2 = gmp-ecm default
ecm: 1008/1008 curves on C155 input, at B1 = 1M, B2 = gmp-ecm default
ecm: 3000/3000 curves on C155 input, at B1 = 10M, B2 = gmp-ecm default
ecm: 545/1956 curves on C155 input, at B1 = 100M, B2 = gmp-ecm default