Is there an algorithm to solve this form of an equation (ax+b)/(cx+d)==>Numerator is divisible for what integral value of x. Certain class of factorization...
Hi David, Thanks for your help to show that the "law of small numbers" can start with big numbers ! And, next time I have some idea, I'll try to test a little...
Hello I am looking for information/outcomes about 2.14159265 (pi-1). Does 2.14159265 have anything to do with primes? Search engines don't seem to have an...
Let P(i) be the set of all the primes whose squares do not exceed i. For an integer j and a set of primes J, Let K(j, J) be the number of n in [1, j] such...
I have searched quite extensively on the internet for some site that would have information on whether or not there exists a closed form expression or...
My Goal is to use the new PFGW version 1.3 for searching Cunningham Chains 2nd kind. I tried using new version 1.3 with input.txt and the program crashes. Here...
For some numbers, like 2^170458+4257 the *sum=* parameter of the intermediate results overflows the output line and the display starts rolling, causing some...
... It may not be censorship. I find myself accidentally responding just to the poster instead of the entire group quite often. It is an easy mistake to make...
... In the example shown, $a=15 3, 11 and 17 are not +-1 mod(15) so they are overlooked, and as Jens said, when reaching the square root of the argument it...
Martin Michael Musatov wrote: I would happen to say this whole business of prime numbers is quite the debacle. In fact the whole factor and order of things is...
Couldn't find your name among the Authors. It's a must to include it there! Lélio ... From: Norman Luhn <nluhn@...> Date: 21/06/2009 04:26 Subject: Re:...
... sopadeajo2001 ... No idea about the primenumbers group, but yahoo groups has huge problems with this primeform group - none of the moderators are ever told...
... You haven't provided enough information. When does it crash? Were there any other files (besides your input file) in the runtime folder when you start...
... That is a known issue. I have a patch to address the size of the output, but there is a separate issue leading to that which is still under investigation....
Does anyone use PFGW server, which is bundled with PFGW? I would like to eventually obsolete this application. I think that I can get PRPNet to do most of...
Hello, I tried looking at classes of numbers that I believe would be pseudo-prime free when tested against the base that makes up each different class of...
I have posted the latest Windows and MacIntel distributions at this link: http://openpfgw.svn.sourceforge.net/viewvc/openpfgw/pfgw_win_3.1_20090708.zip ...
Hello Group! Just two months after improving the CC10 record I discovered the following CC10 which is another 10 digits larger: 1070828503293*2^(k-1)*239#+1,...
... Congratulations on beating the oldest record at http://users.cybercity.dk/~dsl522332/math/simultprime.htm The 5th prime in a CC10 counts there so it's...
... http://openpfgw.svn.sourceforge.net/viewvc/openpfgw/pfgw_win_3.1_20090708.zip ... [snip] ... This is a big change, to an interface that has apparently...
You can d/l Windows, MacIntel, and Linux versions from these links: http://openpfgw.svn.sourceforge.net/viewvc/openpfgw/pfgw_win_3.2_20090725.zip?view=log ...
... It is 32-bit code. Is there a need for 64-bit? There is no speed gain for PRP testing, but a potential gain for trial factoring. BTW, I cannot build a...
... The FFTs are several percent faster if you can build a 64-bit version. There are 8 more SSE2 registers available in 64-bit mode that allow for a few minor...
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