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Old 2012-04-15, 02:23   #1706
schickel
 
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Dec 2004
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Quote:
Originally Posted by jrk View Post
One of my two ECM runs on line 3027 produced this gem:
Code:
Run 153 out of 2000:
Using B1=10000000, B2=46842680440, polynomial Dickson(12), sigma=3536871957140198850
Step 1 took 27866ms
Step 2 took 15738ms
********** Factor found in step 2: 5551206901172054583062351210595874081775416652238749
Found probable prime factor of 52 digits: 5551206901172054583062351210595874081775416652238749
Probable prime cofactor 129906928311090953880459217864523818071838252366190167685116209056556687270679 has 78 digits
Wow, I never get that lucky on my c130s!

[EDIT: It's also good to see that the downdriver is still alive (now, as long as the 5 doesn't add any digits); we're still golden....]

Last fiddled with by schickel on 2012-04-15 at 02:27 Reason: Rambling on
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Old 2012-04-15, 08:55   #1707
Andi47
 
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starting ECM @3e6 on alq4788.3033 c131
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Old 2012-04-15, 09:02   #1708
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600 @ B1=3e6 on the C131, NF.
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Old 2012-04-15, 10:39   #1709
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330 @ B1=3e6 on the C131, NF.
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Old 2012-04-15, 13:26   #1710
akruppa
 
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Found probable prime factor of 48 digits: 159450259206967402524996975215244611239608534557
Edit: starting NFS on c108

Last fiddled with by akruppa on 2012-04-15 at 13:53
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Old 2012-04-15, 16:06   #1711
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It got factored.
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Old 2012-04-15, 21:18   #1712
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i3041 has a C126 remaining .. and the 5 is gone!
(total size down to 137)
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Old 2012-04-15, 22:45   #1713
akruppa
 
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Did 2400@3M, now doing 2k@11M on c126.
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Old 2012-04-16, 12:29   #1714
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I threw 1500@3M on the c121@i3044. (I could do NFS, but I would not be able to read the factors before tomorrow morning, so I'll leave it to someone else.)

Last fiddled with by rajula on 2012-04-16 at 13:08
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Old 2012-04-16, 17:27   #1715
RobertS
 
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Quote:
Originally Posted by rajula View Post
I threw 1500@3M on the c121@i3044. (I could do NFS, but I would not be able to read the factors before tomorrow morning, so I'll leave it to someone else.)
NFS:
PRP61 = 4261063551706376757731519359860876519277978869182669884472831
PRP60 = 541450378688037124823705235698592946874107589893049486011051

Now sieving c101@3045 ... done

Last fiddled with by RobertS on 2012-04-16 at 18:07
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Old 2012-04-16, 17:35   #1716
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at this size, isn't it quicker to directly nfs?
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