Well, Chris and Jim, here is feedback from one *very* satisfied user of pfgw_200 -t -h<helpfile> <myjob> viz: PFGW Version 20001229_Win_Dev (Beta software,...
1211
Chris Nash
chris_nash@...
Nov 2, 2000 1:10 am
Hi folks ... bugs@...) ... *grins* This is really quite funny. This bug appeared in PrimeForm once, in that case, it was Michael Bell who discovered...
1210
Chris Nash
chris_nash@...
Nov 2, 2000 12:21 am
Hi folks Paul Underwood just wrote ... Whoah Paul, that didn't take long! Sounds like we may well have overoptimized.... ... Indeed, I just threw...
1209
Paul Underwood
paulunderwood@...
Nov 2, 2000 12:15 am
Hi just downloaded latest pfgw. It reported a bug (details to bugs@...) about calculating a recriprical. Reverting to previous release! Paul ...
1208
Chris Nash
chris_nash@...
Nov 1, 2000 11:59 pm
Hi folks ... Many thanks to Jim for taking the time to perform the Windows build - he did me a big favor, and was no doubt cursing just how much the Windows...
1207
Jim Fougeron
jfoug@...
Nov 1, 2000 11:18 pm
Hello all, PFGW with primality proving and with "helper" primes in a file has just been released, well not actually released, but it has been compiled and...
1206
primeform@egroups.com
Nov 1, 2000 11:18 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the primeform group. File :...
1205
David Broadhurst
d.broadhurst@...
Nov 1, 2000 7:21 pm
... Oh, I never got the chance to enter anything. I just looked in the zipfile and clicked on f2p.exe. The rest was chaos. I guess I should have read some...
1204
David Broadhurst
d.broadhurst@...
Nov 1, 2000 7:16 pm
Chris Nash ... That is surely the best-case scenario! If "they" know a lot more than us then we are boring to them, and vice versa. RE: ...
1203
R Dohmen
r_dohmen@...
Nov 1, 2000 7:14 pm
... I'm sorry :-( ... That last crash i saw was 3 month ago. Maybe you can tell me what exactly you entered, so i can track the error ... Rene ...
1202
Chris Nash
chris_nash@...
Nov 1, 2000 7:03 pm
Hi folks ... Our expectations are skewed that just because some fall, we expect them all to. Seemingly we're on a knife-edge (and have been there for several...
1201
David Broadhurst
d.broadhurst@...
Nov 1, 2000 5:52 pm
... Looks grim! But this quick flurry does at least expose the monumental ignorance of the entirety of humankind about primality proving. I had this dream: ...
1200
Chris Nash
chris_nash@...
Nov 1, 2000 5:11 pm
Hi folks, Note that it is not n entirely desperate endeavor to prove 2^p+3 or 3^p +2. Or at least, it would not have been if one of moderate size exists. ...
1199
Chris Nash
chris_nash@...
Nov 1, 2000 5:06 pm
Hi folks ... G.L. pointed me at these a few days ago (both 2^p+3 and 3^p+2). So far I tested up to 2^p(5873)+3 (19000+ digits) and 3^p(4303)+2 (21000+ digits),...
1198
Paul Jobling
Paul.Jobling@...
Nov 1, 2000 5:03 pm
... But p-1 cannot be a power of 2, since p=3 mod 4. __________________________________________________ Virus checked by MessageLabs Virus Control Centre....
1197
David Broadhurst
d.broadhurst@...
Nov 1, 2000 5:03 pm
... and, of course N+1=4*(2^(p-2)+1) But that can wait until someone does a PRP !!!...
1196
David Broadhurst
d.broadhurst@...
Nov 1, 2000 5:01 pm
... Verily! Ain't the web great: instant correction of imbecillity....
1195
David Broadhurst
d.broadhurst@...
Nov 1, 2000 4:58 pm
... But that can wait until someone does a PRP....
1194
Paul Jobling
Paul.Jobling@...
Nov 1, 2000 4:44 pm
... I think you mean 2*(2^(p-1)+1). So we need to factorise 2^(p-1)+1, which is relatively easy unless p-1 happens to be a power of 2. If p-1 *is* a power of 2...
1193
David Broadhurst
d.broadhurst@...
Nov 1, 2000 4:25 pm
... Better is PrimeForm to take out all the small factors quickly and then edit the (rather small) pform.log to take out "has no small factors." and input to...
1192
Jim Fougeron
jfoug@...
Nov 1, 2000 4:15 pm
... <d.broadhurst@o...> ... http://www.utm.edu/research/primes/curios/147573952589676412931.html ... I did see what I missed ;)...
1191
Jim Fougeron
jfoug@...
Nov 1, 2000 4:11 pm
... This can not be right?? I have made about a 5 minute search, and found 2^84+3, 2^228+3 and 2^390+3 all are certified prime. Am I totally missing...
1190
Christ van Willegen
christw@...
Nov 1, 2000 3:54 pm
... I've started PrimeForm looking for them. I'll let it run for a couple of days (Proth can wait :-) ) Christ van Willegen...
1189
David Broadhurst
d.broadhurst@...
Nov 1, 2000 2:47 pm
... Thanks Paul. So eventually someone (Henri?) will find an unprovable PRP? David...
1188
Paul Jobling
Paul.Jobling@...
Nov 1, 2000 2:41 pm
Two simple observations are that if p=1 mod 4, then 5 divides 2^p+3, and if p=3 mod 4, then 7 divides 2^p+3 1/3 of the time. This leaves those primes = 3 or 7...
1187
David Broadhurst
d.broadhurst@...
Nov 1, 2000 2:22 pm
GL Honaker has a nice observation http://www.utm.edu/research/primes/curios/147573952589676412931.html namely that we know no prime p>67 for which 2^p+3 is...
1186
David Broadhurst
d.broadhurst@...
Nov 1, 2000 1:53 pm
... I use Pari to generate my pfgw input files. But I thought I'd look at f2p.exe. It crashed my system (writing application error: tried to access FFFFF..... ...
1185
R Dohmen
r_dohmen@...
Nov 1, 2000 9:05 am
... If have put a small tool in the file area which migth be helpfull for Windows-users. Rene ...
1184
primeform@egroups.com
Nov 1, 2000 8:56 am
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the primeform group. File : /Prime...
