20060412, 17:51  #34  
Bamboozled!
May 2003
Down not across
2^{2}×41×61 Posts 
Quote:
Paul 

20060412, 17:52  #35 
Sep 2004
5·37 Posts 
400 (16,80) 19995617469086942401.C134
19995617469086942401=P10 * P10 P10 = 4388625601 P10 = 4556236801 with Tomabechi P1 (including aprcl) oops, 3 min too late !! P.S. Last fiddled with by Phil MjX on 20060412 at 17:53 
20060412, 19:03  #36  
Nov 2003
3·2,473 Posts 
Quote:
was not checked for primality...... mea culpa. 

20060412, 19:36  #37  
Oct 2004
Austria
2×17×73 Posts 
Quote:


20060412, 23:17  #38  
Jul 2005
386_{10} Posts 
Quote:
4388625600 = 2^6 x 3 x 5^2 x 89 x 10273 4556236800 = 2^11 x 3 x 5^2 x 29663 

20060413, 09:19  #39 
Sep 2005
UGent
2^{2}·3·5 Posts 
Some ECM work:
Some ECM work (format: [#curves]@[B1 bound], other parameters are the ecm default)
3,2,343 (C136) 650@1e6, 40@3e6 3,2,371 (C141) 2440@3e6 3,2,391 (C161) 345@1e6 
20060413, 12:35  #40 
Sep 2005
Berlin
2·3·11 Posts 
For those who are interested: Look at
http://www.cip.mathematik.unistuttg...nt/ex3k2k.html 
20060413, 12:44  #41  
Nov 2003
3×2,473 Posts 
Quote:
You have some composites in your results that I have already finished. I have finished everything for 3^n +/ 2^n up to n = 336 (3^335  2^335) was just finished here a day or two ago by someone else. I could easily finish everything to n = 400, but I am busy with other things... 

20060413, 15:44  #42 
"Nancy"
Aug 2002
Alexandria
2,467 Posts 
This thread fits better into Factoring than GMPECM. Moved.
Alex 
20060413, 15:49  #43 
Apr 2006
89 Posts 
The factors of the C111 from 3^372+2^372 are:
840497702349180597209469882198293789055301120886641 (pp51) 766974650561302741840583863816378225180158232426458907919137 (pp60) with ggnfs (pp=probable prime) 
20060413, 16:00  #44  
Nov 2003
1CFB_{16} Posts 
Quote:
effort had been expended to proceed with NFS on these numbers. 

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