Marin Mersenne 2^P-1
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MnStatusDetails
2294977Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1702830269714790143604792477.22019-11-18 17:11:46
ECM
DigitsB1Curves
2550000134 / 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)george bruntonA2508162E4ED46F50
Verified (Factored)1999-03-01Johan ViljoenA2508162E4ED46F52107656
Verified (Factored)2018-04-29kkmrkkblmbrbkA2508162E4ED46F5316693
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-11-19mnd9A33FBB994A4464BE1132453553
Verified2019-11-19ATHA33FBB994A4464BE1221207753
P-1 factors
DateFactorB1B2
2019-11-18170283026971479014360479300000090000000
History
DateUserTypeResult
2019-11-19ATHC-PRP
M2294977/170283026971479014360479 : A33FBB994A4464BE
PRP: Verified
PRP without proof (not generated)
2019-11-19mnd9C-PRP
M2294977/170283026971479014360479 : A33FBB994A4464BE
PRP: Verified
PRP without proof (not generated)
2019-11-18BigBrotherF-PM1
Factor: 170283026971479014360479 / (P-1, B1=3000000, B2=90000000, E=12)
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-04-29kkmrkkblmbrbkC-LL
A2508162E4ED46F5
2017-05-27Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-16JossNF-PM1
B1=431426, B2=4314260, E=6
2015-11-04ramgeisNF
no factor from 2^65 to 2^66
2015-03-12VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-12VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-03JossNF-PM1
B1=140934
2014-06-11JossNF-PM1
B1=112967
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-05-12Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-17Oscar ÖstlinNF-PM1
B1=85000, B2=1742500, E=6
2010-12-03Oscar ÖstlinNF-PM1
B1=75011
2010-11-15JossNF-PM1
B1=20000
2010-11-07JossNF-PM1
B1=15000
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61