Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
3032537Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
8197616515611526107531183779444047935116.02020-06-02 19:12:04
ECM
DigitsB1Curves
255000070 / 280
Estimated T-Level: 21.3 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1997-11-11Herb Savage46FCCB80985B82DC0
Verified (Factored)1999-05-30Kent Lee46FCCB80985B82DC1854330
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-06-02ATH5A6C910DBDF07CF1155539053
Verified2020-06-03marssystems5A6C910DBDF07CF11161566653
P-1 factors
DateFactorB1B2
2020-06-0281976165156115261075311837794440479326241651859577405
History
DateUserTypeResult
2022-07-17JossNF-PM1
B1=3032537, B2=3067756230
2021-12-25JossNF-PM1
B1=3032537, B2=116678100
2021-12-08JossNF
no factor from 2^68 to 2^69
2021-01-14JossNF-PM1
B1=303253, B2=3032537, E=6
2021-01-14JossNF-PM1
B1=303253
2020-06-03marssystemsC-PRP
M3032537/81976165156115261075311837794440479 : 5A6C910DBDF07CF1
PRP: Verified
PRP without proof (not generated)
2020-06-02ATHC-PRP
M3032537/81976165156115261075311837794440479 : 5A6C910DBDF07CF1
PRP: Verified
PRP without proof (not generated)
2020-06-02oodairaF-PM1
Factor: 81976165156115261075311837794440479 / (P-1, B1=32624165, B2=1859577405, E=12)
2018-07-19ramgeisNF
no factor from 2^67 to 2^68
2017-07-09mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-02Gordon SpenceNF
no factor from 2^66 to 2^67
2016-05-03Squeeky_SquirrelNF-PM1
B1=195000, B2=5313750, E=6
2015-06-02ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2010-10-27Sid & AndyNF
no factor from 2^61 to 2^62
2010-10-10markrNF-PM1
B1=110000, B2=2420000, E=6
2009-02-09Jayson KingNF
no factor from 2^60 to 2^61