Marin Mersenne 2^P-1
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MnStatusDetails
3192577Factored
FactorDigitsBitsDate
413712481575988890310832712685.12021-01-19 14:07:30
ECM
DigitsB1Curves
255000029 / 280
Estimated T-Level: 20.5
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Keith Laney94A8704BD4775F0D0
Verified (Factored)1999-06-15Paul Smout94A8704BD4775F0D1368391
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-01-19mrhA2222417FE3ED4AB1281108353
History
DateUserTypeResult
2022-09-12JossNF-PM1
B1=1000000, B2=241175550
2022-02-27JossNF-PM1
B1=1000000, B2=134343300
2021-01-19jericksonCERT
PRP Certification
Proof certified good
2021-01-19mrhC-PRP
M3192577/41371248157598889031083271 : A2222417FE3ED4AB
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-19daveward2005F-ECM
Factor: 41371248157598889031083271 / (ECM curve 7, B1=50000, B2=5000000, Sigma=8473219887279673)
2019-11-05mikrNF-PM1
B1=4000000, B2=150000000, E=12
2018-12-24TJAOINF
no factor from 2^67 to 2^68
2017-04-30Gordon SpenceNF
no factor from 2^66 to 2^67
2016-05-17JossNF-PM1
B1=346029, B2=6228522, E=6
2015-12-08Squeeky_SquirrelNF-PM1
B1=155000, B2=3913750, E=6
2015-06-21ThaNF
no factor from 2^65 to 2^66
2015-02-15VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-15VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-01JossNF-PM1
B1=105744
2014-08-21JossNF-PM1
B1=85640
2013-01-03dbaughNF
no factor from 2^62 to 2^63
2011-10-19markrNF
no factor from 2^61 to 2^62
2009-04-08S485122NF
no factor from 2^60 to 2^61