20040422, 04:43  #1 
Jun 2003
Russia, Novosibirsk
11010110_{2} Posts 
Program to verify factors
Does anybody have a program to verify factors of LMH>79.3???
I wrote my own, but it works too slow. I saw this forum has program (factorverify.c) to do verification for exponents <79.3. Can those program work with >79.3??? If yes, than can someone compile it to run under windows or cygwin? Last fiddled with by HiddenWarrior on 20040422 at 04:47 
20040422, 16:04  #2 
"Mike"
Aug 2002
2^{2}×3^{2}×223 Posts 
I used factorverify.c to verify all the factors we found > 79.3M...
Sorry I can't help you with the compiling part... My suggestion is to get a cheap (free) Linux box... I see old Pentiumclass computers in the trash every day... Or maybe get shell access on a Linux box... 
20040423, 01:39  #3  
Banned
"Luigi"
Aug 2002
Team Italia
17·283 Posts 
Quote:
Luigi 

20040423, 01:51  #4  
Banned
"Luigi"
Aug 2002
Team Italia
17·283 Posts 
Quote:
Compiled under Cygwin with GMP library. Luigi Last fiddled with by ET_ on 20040423 at 01:51 

20040423, 02:30  #5 
Jun 2003
Russia, Novosibirsk
214_{10} Posts 
Thanks!

20050418, 09:00  #6 
Mar 2003
New Zealand
13×89 Posts 
Does anyone check the squares of any of the factors discovered? I think it is still an open problem as to whether Mersenne numbers with prime exponents can have a square factor. It should be quite easy to modify factorverify.c to check this.

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