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

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MnStatusDetails
7237141Factored
FactorDigitsBitsDate
3070404816529147058557045438584930237738124.52023-01-01 11:58:38
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)1999-05-16Stephen Scott7BB109144A62FA4C0
Verified (Factored)2002-01-08Michael Hickman7BB109144A62FA4C3857694
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-06PerigAA2C2938730CC5D81628475953
P-1 factors
DateFactorB1B2
2023-01-01307040481652914705855704543858493023771600000016143964200
History
DateUserTypeResult
2023-01-06curtiscCERT
PRP Certification
Proof certified good
2023-01-06PerigC-PRP
M7237141/30704048165291470585570454385849302377 : AA2C2938730CC5D8
PRP proof power = 8
PRP: Verified
Proof certified good
2023-01-01yoyorocks1F-PM1
Factor: 30704048165291470585570454385849302377 / (P-1, B1=16000000, B2=16143964200)
2021-12-25-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-10SRBaseNF
no factor from 2^71 to 2^72
2021-08-24SRBaseNF
no factor from 2^70 to 2^71
2021-08-19SRBaseNF
no factor from 2^69 to 2^70
2020-03-20TJAOINF
no factor from 2^68 to 2^69
2020-02-02storm5510NF-PM1
B1=385000, B2=8470000, E=12
2018-07-31ramgeisNF
no factor from 2^67 to 2^68
2016-10-14Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-16VictordeHollanderNF
no factor from 2^65 to 2^66
2013-11-16David CampeauNF
no factor from 2^64 to 2^65
2013-11-03NesowaNF
no factor from 2^63 to 2^64
2012-07-31Squeeky_SquirrelNF-PM1
B1=90000, B2=1620000, E=6