Marin Mersenne 2^P-1
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MnStatusDetails
3679579Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
252292847555742758414332374.42024-04-01 09:59:54
ECM
DigitsB1Curves
2550000132 / 280
Estimated T-Level: 22.4
TF below 2^69 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Dax Prather07D4544B5BFD16100
Verified (Factored)Ken Kriesel07D4544B5BFD16100
Verified (Factored)Tom Cage07D4544B5BFD16100
Verified (Factored)1999-08-07roger nyman07D4544B5BFD16101792395
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2024-04-01Alvin BunkB87F8A910275E4B91310870753
History
DateUserTypeResult
2024-04-01Jonathan WebbCERT
PRP Certification
Proof certified good
2024-04-01Alvin BunkC-PRP
M3679579/25229284755574275841433 : B87F8A910275E4B9
PRP proof power = 7
PRP: Verified
Proof certified good
2024-04-01Alvin BunkF-ECM
Factor: 25229284755574275841433 / (ECM curve 25, B1=72736, B2=64857975, Edwards Sigma=5370068850128036)
2023-12-25JossNF-PM1
B1=2364180, B2=4778283510
2023-08-31JossNF-PM1
B1=1000000, B2=1257446190
2021-03-01axnNF
no factor from 2^69 to 2^70
2020-11-13axnNF
no factor from 2^68 to 2^69
2020-11-01axnNF-PM1
B1=30000000, B2=600000000, E=12
2018-09-17TJAOINF
no factor from 2^67 to 2^68
2017-03-28JossNF-PM1
B1=652294, B2=6522940, E=6
2017-03-26JossNF-PM1
B1=543579, B2=5435790, E=6
2017-03-25JossNF-PM1
B1=452983, B2=4529830, E=6
2017-03-22JossNF-PM1
B1=377486, B2=3774860, E=6
2017-03-18JossNF-PM1
B1=314572, B2=3145720, E=6
2017-03-15JossNF-PM1
B1=262144, B2=2621440, E=6
2017-02-04JossNF-PM1
B1=188743
2017-01-29JossNF-PM1
B1=157286
2017-01-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-20ramgeisNF
no factor from 2^65 to 2^66
2015-01-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-25VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-05GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-06-26Richard B. WoodsNF
no factor from 2^61 to 2^62
2009-03-08S485122NF
no factor from 2^60 to 2^61