20110818, 00:56  #1 
Oct 2009
Oulu, Finland
2·3·5 Posts 
Extended Cunningham or so
Hello
My last winter project was seek factors for b^n+1 where b is a prime between 37 and 997 and n is up to 1051. Maybe I will continue it, I don't know yet. But anyway, there is very short introduction for this project: http://verity.ig.fi/factoring/ This project is CPU intensive, but probabilities for findings are still high. 
20110818, 04:06  #2 
"William"
May 2003
New Haven
936_{16} Posts 
Your project has large overlap with Richard Brent's factor tables, Mishima Hisanori's cyclotomic factors, the factordb Factor Tables, and the oddperfect factorizations. It would inspire more confidence if your web site mentioned these overlaps and what coordination methods you use to avoid factoring numbers already factored elsewhere and to inform other projects of new factors you find.

20110818, 11:30  #3  
Nov 2003
16444_{8} Posts 
Quote:
before?? You should realize by now that it is always "compute first and ask questions later". 

20110818, 13:17  #4 
"Mark"
Apr 2003
Between here and the
2^{5}·5·37 Posts 
I actually think it is a waste of time. There are enough other factoring projects out there. If you insist on continuing your search, set up an ECMNet server and maybe some people will gives you a few cycles.

20110818, 14:38  #5 
"William"
May 2003
New Haven
936_{16} Posts 
"Expect" is much too strong a word. I neither expect nor demand it. "Gently encourage" is the tone I'm striving for. Especially in a project like this, where the factoring interests strongly overlap with mine. I'm hoping to channel the excitement in productive directions. I'm hopeful  I note that he is already aware of the factordb and using it.

20110819, 03:35  #6 
Dec 2010
Monticello
5×359 Posts 
Oh, relax...at least he's asking questions...and hopefully he'll look at the things pointed to and learn something....

20110819, 12:45  #7  
Nov 2003
2^{2}·5·373 Posts 
Quote:


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