Marin Mersenne 2^P-1
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MnStatusDetails
16783453Factored
FactorDigitsBitsDate
6657298317982933976572169.22017-06-08 03:49:16
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-11-02Robert NilssonC0793D43E9E32F228044110
Verified (Factored)2006-12-18Barry StokesC0793D43E9E32F2212117519
History
DateUserTypeResult
2024-03-06nordiNF-PM1
B1=500000
2017-06-08ATHF-ECM
Factor: 665729831798293397657 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-09-16NesowaNF
no factor from 2^66 to 2^67