mersenneforum.org Coordination thread for redoing P-1 factoring
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 2020-11-22, 16:18 #78 Ensigm   Aug 2020 1628 Posts Previous ranges 54.5 M (B1=B2≤730,000) and the second half of 55 M (B1=B2≤690,000) should now be finished and I am "unreserving" them. Report for range 54.4 M (B1=B2≤730,000): 0 factors found in 18 attempts (0%). Expected probability 3.81%~3.83%. Report for range second half of 55 M (B1=B2≤690,000): 0 factors found in 12 attempts (0%). Expected probability 3.89%~3.92%. Currently working on: - the first half of 56 M (B1=B2≤690,000)
 2020-11-24, 13:38 #79 Ensigm   Aug 2020 2×3×19 Posts Now intending to work on the exponents in the second half of 56 M that has B1=B2≤700,000 and without a DC. As most of the exponents will be in Cat 3 and higher, I will reserve every exponent as TF before I start my work. If you see an exponent that is not currently reserved in the Primenet system, then it simply means I am not working on it. Declaration here is more for the recording of progress. Currently colloquially "reserved": - the first half 56 M (B1=B2≤690,000) Currently intending to do (will Primenet-reserve every exponent before I actually start working on it, so you don't have to avoid anything——there is no risk of me poaching your factor): - the second half 56 M (B1=B2≤700,000)
 2020-12-05, 04:54 #80 Ensigm   Aug 2020 2×3×19 Posts Report for the second half of 56 M (B1=B2≤700,000): 2 factors found out of 35 attemps (5.71%). Expected prob. 3.93%~3.94%. Now intending to work on the exponents in the first half of 57 M that has B1=B2≤700,000 and without a DC. I will reserve every exponent as TF before I start my work on it, so you don't have to avoid them. Currently informally "reserved": - the first half 56 M (B1=B2≤690,000) Currently planning to do (will Primenet-reserve every exponent): - the first half 57 M (B1=B2≤700,000) Last fiddled with by Ensigm on 2020-12-05 at 05:03 Reason: typo: min prob is 3.93
 2021-01-19, 17:17 #81 ixfd64 Bemusing Prompter     "Danny" Dec 2002 California 1001010011102 Posts I'm finishing up the exponents in the 13m - 13.1m range where B2 < 1.9 million.
 2021-04-17, 20:47 #82 tha     Dec 2002 3·271 Posts I am currently doing the 9M range with B1=2.000.000 and B2 then will be around 162.000.000 I don 't know what just happend, but 12 out of the last 100 attempts resulted in factors found, two of them even doubles, so 14 total. And one 124 bits in size

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