20060411, 01:12  #12 
"Jason Goatcher"
Mar 2005
3·7·167 Posts 
Mr. Silverman, if you're willing to accept the fact that I have zero knowledge of how ecm works, and you don't care that I don't care, I would be happy to give you a week or two of time on my lowly 1.75GHz Sempron.
Just post some ecm parameters and I can get on it right away. Edit: I apologize, I didn't see post #6. I'm going to attempt to get it running sometime tonight. Edit2: Could someone post some stuff about filenames and how to use post #6 info. Sorry for my ignorance. Last fiddled with by jasong on 20060411 at 01:22 
20060411, 01:39  #13 
"Jason Goatcher"
Mar 2005
3·7·167 Posts 
Mr. Silverman, could you please post more info about your curves? I learned the hard way that different B1, B2 values mean that a different number of curves is necessary.
Can I assume that your B1=1e6 means B2=8.4e8? (I printed out part of a web page a while back, not realizing B1/B2 parameters weren't set in stone. In the instance of these parameters it says 35digits and 1100 curves. Is this correct? Or is B2=B1*100? Or are they both wrong?) 
20060411, 02:03  #14 
"Mark"
Apr 2003
Between here and the
6,827 Posts 
14273530385368339 is a factor of 389. The cofactor is composite.

20060411, 10:41  #15  
"Bob Silverman"
Nov 2003
North of Boston
2^{3}×937 Posts 
Quote:
Bob 

20060411, 10:43  #16  
"Bob Silverman"
Nov 2003
North of Boston
2^{3}×937 Posts 
Quote:
This should have cleared out factors to 30 digits. Run whatever curves you like. 

20060411, 10:56  #17  
"Bob Silverman"
Nov 2003
North of Boston
2^{3}×937 Posts 
Quote:
If anyone would like to see the entire set of tables (a^n +/ b^n) for (a,b) = 1, a <=12, b < a, I will post them, but be warned: the file is ~600Kb. I do not work on them a lot. Note that these tables are the "homogeneous" analogue of the Cunningham tables. 

20060411, 11:15  #18  
"Bob Silverman"
Nov 2003
North of Boston
1D48_{16} Posts 
Quote:
resources. I just clean up the "moderate sized" pieces that trail just behind the leading edge... I wish I did have the resources... I'd love to go after M1061.......... However, even if I had the sieving resources, solving the matrix for this number will be a real problem... Hey! perhaps we could get cajole IBM into lending "Big Blue" to do the matrix once we get around to organizing the sieving???? I know Don Coppersmith. Perhaps I might ask him. Bob 

20060411, 12:10  #19  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
26476_{8} Posts 
Quote:
If you don't have them hosted anywhere, I'll volunteer to put them on my site if you wish. Paul 

20060411, 12:11  #20  
"Bob Silverman"
Nov 2003
North of Boston
2^{3}×937 Posts 
Quote:
We are behind a strict firewall. I will send them to you. 

20060411, 15:27  #21 
"Sander"
Oct 2002
52.345322,5.52471
29·41 Posts 
Can somenody explain me how to create a SNFS polynomial for these numbers?

20060411, 16:37  #22  
Bamboozled!
"๐บ๐๐ท๐ท๐ญ"
May 2003
Down not across
2×5,791 Posts 
Quote:
It will take me a little time to put them on the web as I need to convert your mail to separate files and then to write an HTML wrapper. I'll probably put a separate copy of the tables in my standard format too  one designed to be easily parsed by people and by programs. When the page is ready I'll post the URL here. Paul 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
New phi for homogeneous Cunningham numbers  wpolly  Factoring  29  20221025 00:46 
Mathematics of Cunningham Numbers (3rd ed., 2002, A.M.S.)  Xyzzy  Cunningham Tables  42  20140402 18:31 
Don't know how to work on Cunningham numbers.  jasong  GMPECM  6  20060630 08:51 
Doing Cunningham numbers but messed up.  jasong  Factoring  1  20060403 17:18 
Need help factoring Cunningham numbers  jasong  Factoring  27  20060321 02:47 