20110315, 16:30  #1 
Nov 2003
2^{2}·5·373 Posts 
Extensions
It appears that the 5 and 6 tables now need extending.
There are fewer than 5 holes remaining. 
20110315, 17:35  #2 
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
2910_{16} Posts 

20110426, 02:53  #3 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
59×157 Posts 
a rare SNFS miss
3^7231 cofactor was factored by ECM with B1=450M as p63.p105. Seems to be an "SNFS miss" . (snfs difficulty is 230)
A bit like shooting sparrows with a cannon, perhaps? Most probably, it was just a wrinkle in the process of bulk list ecming. Maybe it should have been left unnoticed, but someone would have asked... so I will pretend to be the troublemaker. If for anything, then at least for the purpose of creating the antonym to the "ECM miss". 
20110426, 12:13  #4  
Nov 2003
2^{2}×5×373 Posts 
Quote:
Enquiring minds want to know! 

20110427, 09:27  #5  
Jun 2005
lehigh.edu
2^{10} Posts 
Quote:
necessarily be overuse of ECM before switching to SNFS. As long as the ECM time was like 20% of the SNFS time, I wouldn't bring out the newly coined "SNFS miss". We could suggest that B1=450M is not very efficient as a sweep for p45's (expecting also a large standard deviation in the time for finding p45s); but I'm not yet clear that it's a misuse of resources (not that Sam's asked). So far as I know, Paul's never put a restriction on the ratio of factorsize to compositesize, like Brent's 2.2 (or so) for the Champions list  p63 is waysmall for that consideration; I'd expect to see Paul list this p63 on the 2011list. After all, ECM didn't know that the number was smaller than usual (runtimewise), except for a lowerorder speedup in the time percurve. Bruce 

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