Marin Mersenne 2^P-1
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MnStatusDetails
4655069Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4397540965092780869284683612788.52025-09-14 01:05:46
ECM
DigitsB1Curves
2550000144 / 280
Estimated T-Level: 22.6 ⓘ
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-06-07Alex LucaferroB0EC31F16CBA0EEF0
Verified (Factored)2000-07-12Stephen WoodB0EC31F16CBA0EEF2593381
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2025-09-14JC_Herles815213D8308FFF261129244853
History
DateUserTypeResult
2025-09-14Fabrice BelletCERT
PRP Certification
Proof certified good
2025-09-14JC_HerlesC-PRP
M4655069/439754096509278086928468361 : 815213D8308FFF26
PRP proof power = 7
PRP: Verified
Proof certified good
2025-09-14JC_HerlesF-ECM
Factor: 439754096509278086928468361 / (ECM curve 11, B1=101598, B2=147138915, Edwards Sigma=605277123152546)
2022-12-08Sid & AndyNF-PM1
B1=4300000, B2=11156874300
2021-03-23-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-21-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-21-Anonymous-NF
no factor from 2^69 to 2^70
2021-03-21-Anonymous-NF
no factor from 2^68 to 2^69
2018-10-18chuenkitNF
no factor from 2^67 to 2^68
2018-06-09BloodERazorNF
no factor from 2^66 to 2^67
2017-11-30Ismo LaitelaNF-PM1
B1=1988203, B2=61634303, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-07-07snme2pm1NF
no factor from 2^65 to 2^66
2015-02-05monstNF
no factor from 2^64 to 2^65
2015-02-05JayderNF
no factor from 2^63 to 2^64
2011-12-09GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-07-18markrNF
no factor from 2^61 to 2^62
2010-05-31markrNF-PM1
B1=95000, B2=2042500, E=6