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

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MnStatusDetails
11651977Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
330119011357004556064872374.82024-06-24 19:11:29
ECM
DigitsB1Curves
255000021 / 280
Estimated T-Level: 20.4 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-02-04Markus KuehlFF780CEA33C028CB4521765
Verified (Factored)2004-04-09Lawrence Cairns-SmithFF780CEA33C028CB7689468
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-06-24yuriy_5-119953E2C1D2BD6221230034053
History
DateUserTypeResult
2024-08-19vshNF
no factor from 2^72 to 2^73
2024-07-15yuriy_5-1NF-PM1
B1=14028982, B2=119800600920
2024-06-25zelulescacosCERT
PRP Certification
Proof certified good
2024-06-24yuriy_5-1C-PRP
M11651977/33011901135700455606487 : 19953E2C1D2BD622
PRP proof power = 8
PRP: Verified
Proof certified good
2024-06-24yuriy_5-1F-ECM
Factor: 33011901135700455606487 / (ECM curve 2, B1=250000, B2=213296622, Edwards Sigma=6900882522131764)
2024-04-22yuriy_5-1NF
no factor from 2^72 to 2^73
2022-11-27riccardo ubertiNF
no factor from 2^71 to 2^72
2021-08-20LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-15SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2018-01-14ramgeisNF
no factor from 2^67 to 2^68
2016-01-30VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-03lycornNF
no factor from 2^64 to 2^65
2012-03-27James HeinrichNF-PM1
B1=225000, B2=5400000, E=6