Marin Mersenne 2^P-1
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MnStatusDetails
2521367Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
533643071281434088410931612685.52023-01-25 15:03:54
ECM
DigitsB1Curves
2550000176 / 280
Estimated T-Level: 23.1 ⓘ
TF below 2^72 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Richard Workman2F09F10875F814CE0
Verified (Factored)1999-06-06Trevor Green2F09F10875F814CE93385
Verified (Factored)2018-06-05kkmrkkblmbrbk2F09F10875F814CE814955
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-25LordJuliusD4C1D59E372CAA6A1136074253
P-1 factors
DateFactorB1B2
2023-01-255336430712814340884109316150000008936884110
History
DateUserTypeResult
2023-01-25curtiscCERT
PRP Certification
Proof certified good
2023-01-25LordJuliusC-PRP
M2521367/53364307128143408841093161 : D4C1D59E372CAA6A
PRP proof power = 7
PRP: Verified
Proof certified good
2023-01-25Architects CubedF-PM1
Factor: 53364307128143408841093161 / (P-1, B1=5000000, B2=8936884110)
2022-12-18Architects CubedNF
no factor from 2^69 to 2^70
2021-07-12TJAOINF
no factor from 2^68 to 2^69
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-06-05kkmrkkblmbrbkC-LL
2F09F10875F814CE
2018-05-12mikrNF-PM1
B1=3000000, B2=135000000, E=12
2017-12-10JossNF-PM1
B1=600000, B2=6000000, E=6
2017-08-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-06ramgeisNF
no factor from 2^65 to 2^66
2015-02-18VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-18VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-13Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-03-04James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-06JossNF-PM1
B1=50000
2011-01-01JossNF-PM1
B1=30000
2010-12-19JossNF-PM1
B1=20000
2009-01-28Sturle SundeNF
no factor from 2^60 to 2^61