Marin Mersenne 2^P-1
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MnStatusDetails
2263739Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1156512940093775746960632476.62020-07-29 19:59:12
ECM
DigitsB1Curves
2550000228 / 280
Estimated T-Level: 24.1 ⓘ
TF below 2^75 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Pauli ViljamaaC063662F6CCA5B1C0
Verified (Factored)1999-05-16Brandon GalbraithC063662F6CCA5B1C90834
Verified (Factored)2018-04-24kkmrkkblmbrbkC063662F6CCA5B1C447813
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-08-02ANONYMOUS720CFFE3BC5EF724136209353
Verified2020-08-19marssystems720CFFE3BC5EF724180045053
History
DateUserTypeResult
2020-08-19marssystemsC-PRP
M2263739/115651294009377574696063 : 720CFFE3BC5EF724
PRP: Verified
PRP without proof (not generated)
2020-08-02ANONYMOUSC-PRP
M2263739/115651294009377574696063 : 720CFFE3BC5EF724
PRP: Verified
PRP without proof (not generated)
2020-07-29GANF-ECM
Factor: 115651294009377574696063 / (ECM curve 2, B1=50000, B2=5000000, Sigma=3118683510516797)
2019-06-30BigBrotherNF-PM1
B1=1000000, B2=20000000, E=12
2019-05-06TJAOINF
no factor from 2^67 to 2^68
2018-04-24kkmrkkblmbrbkC-LL
C063662F6CCA5B1C
2017-01-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-29JossNF-PM1
B1=342144, B2=3421440, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-30ramgeisNF
no factor from 2^65 to 2^66
2015-03-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-10VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-02JossNF-PM1
B1=128353
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-04markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-12JossNF-PM1
B1=30000
2010-11-07JossNF-PM1
B1=15000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61