mersenneforum.org November 2017
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 2017-10-30, 14:17 #1 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 100100101110002 Posts November 2017
 2017-11-12, 15:47 #2 Dieter   Oct 2017 2×5×11 Posts My computer has calculated at least 100 hours with 4 threads and several programs (written in 64 bit assembly), but all I receive is something like 6 9 6 9 12 9 6 15 6 15 3 12 6 9 12 9 6 9 15 3 12 6 15 6 , the numbers being 216 times the probability of the 24 triplets {x,y,z}; and we want 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9. I use linear combinations of a,b,c, “and” and “or”. The update(1/11) contains the term “b&1234”as an example. For me, that is a little bit misleading: only numbers <=7 make sense after “b&” (0<=b<=6; b has only 3 bits). Last fiddled with by Batalov on 2017-11-12 at 16:46 Reason: please use SPOILER tag when going into (partial) solution!
 2017-12-01, 21:40 #3 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 23×52×47 Posts There is one more evening to tinker with this one. Unlocking date is listed as 12/02. I had no time all month, but maybe tonight... being Friday and all.
 2017-12-08, 14:55 #4 Xyzzy     "Mike" Aug 2002 2·3·5·269 Posts

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