Marin Mersenne 2^P-1
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MnStatusDetails
2181349Factored
FactorDigitsBitsDate
6421192736329985613592169.12020-03-11 13:39:25
ECM
DigitsB1Curves
255000059 / 280
Estimated T-Level: 21.1 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ethan Hansen2E03139A6DB76C4E0
Verified (Factored)1999-02-21David Allen2E03139A6DB76C4E521321
Verified (Factored)2018-04-13kkmrkkblmbrbk2E03139A6DB76C4E993354
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-03-12Jinyuan Wang1EA04A1D77601C88146958653
Verified2020-03-13Chang Chia-Tche1EA04A1D77601C88144630953
History
DateUserTypeResult
2020-03-13Chang Chia-TcheC-PRP
M2181349/642119273632998561359 : 1EA04A1D77601C88
PRP: Verified
PRP without proof (not generated)
2020-03-12Jinyuan WangC-PRP
M2181349/642119273632998561359 : 1EA04A1D77601C88
PRP: Verified
PRP without proof (not generated)
2020-03-11mnd9F-ECM
Factor: 642119273632998561359 / (ECM curve 2, B1=50000, B2=5000000, Sigma=5194758439711766)
2019-04-22TJAOINF
no factor from 2^67 to 2^68
2018-04-13kkmrkkblmbrbkC-LL
2E03139A6DB76C4E
2018-01-23mikrNF-PM1
B1=2500000, B2=125000000, E=12
2016-11-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2016-01-04JossNF-PM1
B1=443432, B2=4434320, E=6
2016-01-02ramgeisNF
no factor from 2^65 to 2^66
2015-03-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-25VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-10JossNF-PM1
B1=148848
2014-06-26-Anonymous-NF-PM1
B1=119424
2013-09-13BloodIceNF
no factor from 2^62 to 2^63
2011-01-14markrNF-PM1
B1=90000, B2=1620000, E=6
2009-01-06Sturle SundeNF
no factor from 2^61 to 2^62
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61