Program to verify factors

HiddenWarrior · 2004-04-22, 04:43

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?

Xyzzy · 2004-04-22, 16:04

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 Pentium-class computers in the trash every day...

Or maybe get shell access on a Linux box...

ET_ · 2004-04-23, 01:39

Quote:

Originally Posted by HiddenWarrior

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?

I will try to compile it tomorrow.

Luigi

ET_ · 2004-04-23, 01:51

Quote:

Originally Posted by ET_

I will try to compile it tomorrow.

Luigi

Here it is

Compiled under Cygwin with GMP library.

Luigi

HiddenWarrior · 2004-04-23, 02:30

Thanks!

geoff · 2005-04-18, 09:00

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.

2004-04-22, 04:43	#1
HiddenWarrior Jun 2003 Russia, Novosibirsk 2·107 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 2004-04-22 at 04:47

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2004-04-22, 16:04	#2
Xyzzy "Mike" Aug 2002 5·17·97 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 Pentium-class computers in the trash every day... Or maybe get shell access on a Linux box...

2004-04-23, 02:30	#5
HiddenWarrior Jun 2003 Russia, Novosibirsk 214₁₀ Posts	Thanks!

2005-04-18, 09:00	#6
geoff 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.