Marin Mersenne 2^P-1
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MnStatusDetails
4402721Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3311450741919943942738511406013098.12024-07-16 09:05:54
ECM
DigitsB1Curves
255000012 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David A McGough9AA7DEEEBC3EF5200
Verified (Factored)2001-05-06Alexander Toussaint9AA7DEEEBC3EF5202652391
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-07-16Jason Lynch81425655A18A335F118953153
P-1 factors
DateFactorB1B2
2024-07-1633114507419199439427385114060119964000313263500550
History
DateUserTypeResult
2024-07-16Luke DurantCERT
PRP Certification
Proof certified good
2024-07-16Jason LynchC-PRP
M4402721/331145074191994394273851140601 : 81425655A18A335F
PRP proof power = 7
PRP: Verified
Proof certified good
2024-07-16Jason LynchF-PM1
Factor: 331145074191994394273851140601 / (P-1, B1=19964000, B2=313263500550)
2021-08-22SRBaseNF
no factor from 2^70 to 2^71
2021-08-18SRBaseNF
no factor from 2^69 to 2^70
2021-08-02axnNF-PM1
B1=10000000, B2=500000000
2021-07-22TJAOINF
no factor from 2^68 to 2^69
2018-06-17ramgeisNF
no factor from 2^67 to 2^68
2018-01-22BloodERazorNF
no factor from 2^66 to 2^67
2016-07-04mikrNF-PM1
B1=1800000, B2=68000000, E=12
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-06-21snme2pm1NF
no factor from 2^65 to 2^66
2014-12-02NesowaNF-PM1
B1=255000, B2=5418750, E=6
2014-09-16-Anonymous-NF-PM1
B1=69578
2014-08-06lycornNF
no factor from 2^64 to 2^65
2014-08-06JayderNF
no factor from 2^63 to 2^64
2012-01-17GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-11-01markrNF
no factor from 2^61 to 2^62
2009-08-19USAFSSNF-PM1
B1=55000, B2=1017500, E=6