20190228, 07:57  #1 
Feb 2019
China
59 Posts 
how can I use GMPECM on Windows 7?
I take great interest in factorization ,
but I am unable to use Linux or Unix , is there anybody who can use GMPECM on Windows 7? prime95 only can ECM number like k*b^n+c 
20190228, 18:12  #2 
"Curtis"
Feb 2005
Riverside, CA
2^{9}·3^{2} Posts 
Download a binary, open a command line prompt "cmd" program, and use it. If you don't know how you use a command line, you're out of luck it's not a graphicalinterface program.

20190228, 21:10  #3 
Einyen
Dec 2003
Denmark
3·17·59 Posts 
There are WIndows binaries in this thread:
https://mersenneforum.org/showthread.php?t=4087 Do not start with the self compiling stuff from the latest post #458 until you have tested GMPECM and know if you want to use it a lot. Try one of the normal binaries from post #455 or earlier. 
20190301, 00:21  #4 
Feb 2019
China
59 Posts 

20190301, 00:59  #5 
Sep 2002
Database er0rr
3×11×107 Posts 
Please address your question about ECM in the ECM section, wherein your other question about it is answered  you will find a link there for a "Win7" executable.
Last fiddled with by paulunderwood on 20190301 at 01:11 
20190301, 01:24  #6  
Feb 2019
China
111011_{2} Posts 
Quote:
k*b^n+c,I just give him some suggestion! I hope I can factor any integer by prime95 one day ! 

20190301, 01:30  #7 
Sep 2002
Database er0rr
3×11×107 Posts 

20190301, 01:50  #8 
Feb 2019
China
59 Posts 

20190301, 01:59  #9  
Sep 2002
Database er0rr
3531_{10} Posts 
Quote:
ATH has a link for you for a win7 GMPECM binary which will find factors up to ~70 digits. For anything bigger you should look into Carl Pomerance's Quadratic Sieve and larger still NFS (number field sieve). You might find PariGP quicker than Mathematica. What's more, it is Free and Open Source. It runs on Windoze 7. 

20190301, 19:33  #10  
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
47×197 Posts 
Quote:
There are plenty of software solutions to have Linux either as a dual boot, or in a VM, or a fairly good Linux emulation in Windows (like CygWin). 

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