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

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MnStatusDetails
6995161Factored
FactorDigitsBitsDate
1793549855536420582732167.32018-02-26 00:49:28
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-08-07Marc Getty / Phil Fizur32857284F0AF03700
Verified (Factored)2002-02-24Northwestern College32857284F0AF03704902363
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-03-04nokno7E39501A8DFDC2A01013
Verified2019-02-21kkmrkkblmbrbk7E39501A8DFDC2A01129720013
History
DateUserTypeResult
2019-02-21kkmrkkblmbrbkC-PRP
M6995161/179354985553642058273 : 7E39501A8DFDC2A0
PRP: Verified
PRP without proof (not generated)
2018-03-04noknoC-PRP
M6995161/179354985553642058273 : 7E39501A8DFDC2A0
PRP: Verified
PRP without proof (not generated)
2018-02-26-Anonymous-F
Factor: 179354985553642058273 / TF: 67-68
2016-04-27Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-14lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-09-08Carsten KossendeyNF-PM1
B1=445000, B2=13572500, E=12