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

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MnDetails
7090613
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 267
Factored
FactorDigitsBitsDate
737888587486800918712066.02016-08-24 12:34:02
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1999-07-26Stephen Wood385843BCF8153DDA3993623Linux 32-bit,Prime95,v18,(aka WU2)
Factored2001-11-10Marc Getty / Phil Fizur385843BCF8153DDA2344634Windows,Prime95,v20,NT service,(aka WW5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2018-02-09Oliver Kruse7DC1DAB82BD2BB641582912953
Verified
PRP without proof (not generated)
2019-03-13ATH7DC1DAB82BD2BB64189589453
History
DateUserTypeResult
2025-01-01Stef42NF-PM1B1=1031000, B2=1848150150
2019-03-13ATHC-PRPM7090613/73788858748680091871 : 7DC1DAB82BD2BB64
2018-02-09Oliver KruseC-PRPM7090613/73788858748680091871 : 7DC1DAB82BD2BB64
2016-08-24kkmrkkblmbrbkFFactor: 73788858748680091871 / TF: 66-67
2015-06-16VictordeHollanderNFno factor TF: 65-66
2014-02-09lycornNFno factor TF: 64-65
2014-02-06NesowaNFno factor TF: 63-64
2011-12-23bcp19NF-PM1B1=85000, B2=1551250, E=6
2001-11-10-anonymous-C-LL385843BCF8153DDA
2001-11-03-anonymous-NF-PM1B1=35000, B2=498750
2001-11-03-anonymous-NFno factor TF: 1-63
1999-10-07-anonymous-C-LL8F35C5DA485A2B__
1999-07-26Stephen WoodC-LL385843BCF8153DDA
1998-06-07-anonymous-NFno factor TF: 1-62