Marin Mersenne 2^P-1
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MnStatusDetails
330439Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
712690882114808926084902072685.92019-03-20 14:32:43
ECM
DigitsB1Curves
2550000280 / 280
30250000552 / 640
Estimated T-Level: 29.3 ⓘ
TF below 2^92 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski63660
Verified (Factored)Unknown63660
Verified (Factored)Guillermo Ballester ValorF60744789E3D63660
Verified (Factored)Eivind TrielF60744789E3D6366120363
Verified (Factored)2002-01-22Dennis PopeF60744789E3D6366326326
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-03-22ANONYMOUSDDC35C7555186001121096553
Verified2019-03-23marcomichDDC35C755518600113671653
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-03-23marcomichC-PRP
M330439/71269088211480892608490207 : DDC35C7555186001
PRP: Verified
PRP without proof (small exponent)
2019-03-22ANONYMOUSC-PRP
M330439/71269088211480892608490207 : DDC35C7555186001
PRP: Verified
PRP without proof (small exponent)
2019-03-20alexF-ECM
Factor: 71269088211480892608490207 / (ECM curve 143, B1=250000, B2=25000000, Sigma=5407369397059376)
2018-01-27Gordon SpenceNF
no factor from 2^64 to 2^65
2016-07-13mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2015-12-09Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-09Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-23NRNF
no factor from 2^61 to 2^62
2013-03-31Sid & AndyNF
no factor from 2^60 to 2^61
2012-01-08alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-06JossNF-PM1
B1=1396291
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59