... What??? Google confirms it wasn't there two days ago: "This is G o o g l e's cache of http://www.primenumbers.net/prptop/prptop.php as retrieved on 2 Apr...
... me. I unequivocally and apologetically retract my accusations, which were based on the combination of vastly insufficient information, and being sure that...
... Openess is sometimes the best policy. Of the two, who gets the "credit"? Oh, on searching I found: http://www.research.att.com/~njas/sequences/A004023 ...
... I view things relativistically. Neither discovery is in the absolute past of the other, and the credit should probably be shared (though with a note ...
Is anyone interested in start a long-term factoring project for R (109297)-1=10*R(109296)? As we can see,109296=2^4*3^3*11*23 is very smooth and N-1 will have...
A project to find 33.4% of the factors of R(109297)-1 is quite enticing until you examine the details. There are indeed many algebraic factors and I have...
Hi, Can someone verify if ((2^41539)*(2^41539+1396)+1) is prime? I used pfgw to find it. Also, what is the estimated time required to prove it? Bill...
... At ~2.1GHz Pentium4: paul@pp4:~/pfgw$ ./pfgw_ver_12_linux -q"(2^41539)*(2^41539+1396)+1" -t PFGW Version 1.2.0 for Pentium and compatibles [FFT v23.8] ...
... enticing ... factors and I ... unfortunate is ... factored ... We, with David Broadhurst's implementation of the Konyagin-Pomerance Theorem in Pari script,...
We need a bit less than 4100 digits. There are 13 composites ranging from C320 to C6520, so with luck this is doable. (There is actually one more, but it's...
... A factor from the odd one might help in the end ;-) Is the big cofactor doable with fastECPP? What about the N+1 factoring side? ... Sorry for the gatesian...
... It's over 12,000 digits. Possible I guess, but it'd take a while! ... The 13 composites I referenced before are ... 409- : c320 409+ : c377 1227+ : c747 ...
From the abcfileformat text: ABC2 $a*$b#+16057+$c a: from 1 to 1000 b: primes from 500 to 510 c: in { 0 4 6 10 12 16 } The number of numbers in the set is...
Thanks David for the pointer to Alex's site. The ecmserver is now set up at childers.myip.org:8194. The progress can be monitored by pointing a web browser...
I have completed the search for Repunits from 86453 up to 200,000. No new repunits have been found, other than the previously announced PRP R(109297). The...
Hi All, I had searched all the Cunningham Project bases to exponent 94727 before I decided to stop and clear up all the larger exponents that were remotely ...
... The "proxime accessit" and "Caldwell-illegitimate" sections of http://groups.yahoo.com/group/primeform/files/NTG/gigantic.txt have been updated,...
Hi, Group. I created the idea of a '2nd-kind' proth using the orginal definition of a Proth number. It's interesting that z= ((2^3011)*(2^3011+2*948)+1). Proth...
... It's prime and has 1813 digits: C:\Users\Jens>pfgw -t -q"(2^3011)*(2^3011+2*948)+1" PFGW Version 1.2.0 for Windows [FFT v23.8] Primality testing...
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