20200223, 16:59  #155  
"Max"
Jun 2016
Toronto
2·3·7·17 Posts 
new GNFS repunit 10,337 C202 target
Quote:


20200223, 17:33  #156 
"Curtis"
Feb 2005
Riverside, CA
11172_{8} Posts 
Max
I'm not sure what you mean. It's an open forum, after all! 
20200224, 05:28  #157 
"Bo Chen"
Oct 2005
Wuhan,China
167 Posts 
Repunit number
There are some special effort at repunit number (10^n  1).
Kurt Team (Bo Chen, Wenjie Fang, Alfred Eichhorn, Danilo Nitsche, Kurt Beschorner, et al. ) aim at factoring these number use snfs and gnfs, until last year we have polish most number snfs less than 300 and gnfs less than 200. Now we are factoring snfs less than 310 and gnfs less than 210. 10,337 gnfs 202 is within our reach, I have suggest the team to factoring this number after the relation collect of 10^459  1, a snfs 306 number. In principle, we could factor this gnfs 202 with 12 months. If Kurt and other members accept my suggestion, we will send Sam an email to reserve this number. Yousuke Koide concentrates at 10^n+1, where n is between 400 and 800, using method ecm and nfs. It would better if the duplicate effort could avoid. If you still want to factor this number, we will not select this number as our next target. I found 3,748+ c204 is also less than 210, perhaps you could factoring this number, I and Kurt have no interest to this number. Best regards, Bo Chen 
20200224, 05:46  #158 
"Curtis"
Feb 2005
Riverside, CA
2×5×11×43 Posts 
We can get the new C202 done by summer, and I'd prefer to not see it wait 12 months for a factorization.
If the C202 goes well, we are likely to try 3,748 the same way: with a combination of CADO work from forumites and nfs@home. We lack candidates of general interest between 200 and 205, so I would like to do the 202 to test this CADOggnfs hybrid rather than the 204 first. 
20200328, 17:27  #159 
Jun 2012
5^{2}·7·17 Posts 
2,2206M Factored by Yoyo
Yoyo found a p64. Nice work!

20200405, 12:42  #160 
Nov 2003
2^{2}×5×373 Posts 

20200405, 14:24  #161  
Jun 2012
5^{2}·7·17 Posts 
Quote:
If WUs for 2,2230M are now being distributed then I’ll ask Yoyo to remove the job from his queue. 

20200405, 22:48  #162  
Nov 2003
7460_{10} Posts 
Quote:
2,2230M will take about the same time to sieve that YoYo takes to do 12K curves. 

20200405, 23:26  #163 
Nov 2003
1110100100100_{2} Posts 

20200406, 07:45  #164 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
5·977 Posts 
Think there’s less clients connected to NFS, 2,2230M will take longer.

20200417, 06:55  #165 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
5·977 Posts 
And 2,2330M is underway at NFS@Home.

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Cunningham ECM efforts  pinhodecarlos  Cunningham Tables  7  20171221 13:29 
Cunningham ECM Now Futile?  R.D. Silverman  GMPECM  4  20120425 02:45 
Cunningham Project on YouTube  Batalov  Cunningham Tables  0  20120226 02:58 
Extended Cunningham or so  rekcahx  Factoring  6  20110819 12:45 
Introduction: ECM work done on Cunningham Project composites  garo  Cunningham Tables  2  20050120 10:06 