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 2016-11-04, 00:10 #144 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2·33·132 Posts a new one to start off GFN11's Code: GF(134,11) has a factor: 194990800297*2^136+1 = 16986094349535024823555304717165743967644099482222593 [TF:173:174:mmff-gfn11 0.28 mfaktc_barrett183_F128_159gs] GF(214,11) has a factor: 41253031637*2^215+1 = 2172225649983980570496463979033549086366423321721492836873161754464502153217 [TF:250:251:mmff-gfn11 0.28 mfaktc_barrett252_F192_223gs] Last fiddled with by Batalov on 2016-11-04 at 14:42 Reason: +1
 2016-11-05, 15:29 #145 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2·33·132 Posts Code: GF(185,11) has a factor: 206010367953*2^186+1 = 20205438096647264763955594917894328061120735144125446982446813806593 [TF:223:224:mmff-gfn11 0.28 mfaktc_barrett224_F160_191gs]
 2016-11-05, 15:59 #146 rajula     "Tapio Rajala" Feb 2010 Finland 32·5·7 Posts Congratulations on the new factors Batalov! Surely you will be getting more soon. It seems that I'm missing GFN7 factor from my collection. Since I don't have a GPU in use, I'll shoot some candidates with ECM.
 2016-11-06, 01:20 #147 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 23A616 Posts Indeed, ECM ...or P-1... Code: 7^4194304+1 has a factor: 20827885658921521643521 (P-1, B1=160000, B2=16000000, E=12) [mprime] 620719363061235*2^25+1 is a Factor of GF(22,7) !!!! (0.000000 seconds) ? factor(20827885658921521643521-1)~ [ 2 3 5 37 53 601 3901301] [25 3 1 1 1 1 1] P.S. The co-factor is composite: Code: (2401^1048576+1)/2/20827885658921521643521 is not prime. RES64: 74CF355631DC5DD7. We8: A1746598,00000000 #prime95/mprime doesn't "show" parentheses in the outout, but we know what "it meant to say" Last fiddled with by Batalov on 2016-11-06 at 23:13 Reason: co-factor is composite
 2016-11-13, 22:09 #148 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2·33·132 Posts Finally, after a week of no factors, two ... next to each other! Code: GF(111,7) has a factor: 3664074159507*2^112+1 [TF:153:154:mmff-gfn7 0.28 mfaktc_barrett160_F96_127gs] GF(111,7) has a factor: 3640791004563*2^113+1 [TF:154:155:mmff-gfn7 0.28 mfaktc_barrett160_F96_127gs]
 2017-01-23, 12:29 #149 houding     "Adolf" Nov 2013 South Africa 6110 Posts 86229*2^82319+1 is a Factor of xGF(82318,10,3)!!!! 17105181*2^14973+1 is a Factor of xGF(14969,11,5)!!!! Adolf
 2017-02-20, 12:06 #150 ET_ Banned     "Luigi" Aug 2002 Team Italia 476610 Posts I don't know if this thread is dedicated to the "new" 7/11 generalized Fermat factors. If this is the case, then you can use the thread http://www.mersenneforum.org/showthread.php?t=21986 to send your "classsic" gfn/xGF factors else 20085603*2^14098+1 is a Factor of xGF(14097,9,5)!!!! 21704897*2^14499+1 is a Factor of xGF(14498,9,5)!!!! 28371113*2^14393+1 is a Factor of xGF(14392,7,2)!!!!

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