Marin Mersenne 2^P-1
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MnStatusDetails
2204453Factored
FactorDigitsBitsDate
1804412197605575126008632477.32021-11-18 14:08:29
ECM
DigitsB1Curves
2550000210 / 280
Estimated T-Level: 23.8
TF below 2^74 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Lars Sözüer8EDB95D8199C3F0A0
Verified (Factored)1999-02-07Ethan Hansen8EDB95D8199C3F0A207637
Verified (Factored)2018-04-16kkmrkkblmbrbk8EDB95D8199C3F0A756679
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-11-18SRJ287706BB9AC55E984BDD1177515753
History
DateUserTypeResult
2021-11-18DWB001CERT
PRP Certification
Proof certified good
2021-11-18SRJ2877C-PRP
M2204453/180441219760557512600863 : 06BB9AC55E984BDD
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-18Alexander DubrovinF-ECM
Factor: 180441219760557512600863 / (ECM curve 4, B1=250000, B2=25000000)
2021-07-15TJAOINF
no factor from 2^68 to 2^69
2019-12-11mikrNF-PM1
B1=5000000, B2=200000000, E=12
2019-05-06TJAOINF
no factor from 2^67 to 2^68
2018-04-16kkmrkkblmbrbkC-LL
8EDB95D8199C3F0A
2016-12-12Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-12-07Alexander DubrovinNF-PM1
B1=2000000, B2=65000000, E=12
2015-11-09Alexander DubrovinNF-PM1
B1=2000000, B2=45000000, E=12
2015-11-09Alexander DubrovinNF-PM1
B1=2000000, B2=35000000, E=12
2015-11-08Alexander DubrovinNF-PM1
B1=2000000, B2=25000000, E=12
2015-11-07Alexander DubrovinNF-PM1
B1=2000000, B2=14000000, E=6
2015-11-07Alexander DubrovinNF-PM1
B1=2000000, B2=8000000, E=12
2015-11-07Alexander DubrovinNF-PM1
B1=1500000, B2=5000000, E=6
2015-11-06Alexander DubrovinNF-PM1
B1=1000000, B2=3000000, E=6
2015-11-06Alexander DubrovinNF-PM1
B1=500000, B2=2000000, E=6
2015-10-21ramgeisNF
no factor from 2^65 to 2^66
2015-03-06VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-06VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-17JossNF-PM1
B1=148232
2014-06-24JossNF-PM1
B1=119116
2013-12-04LaurVNF
no factor from 2^62 to 2^63
2011-01-09markrNF-PM1
B1=90000, B2=1642500, E=6
2010-11-09JossNF-PM1
B1=30000
2010-11-05JossNF-PM1
B1=15000
2009-01-09Sturle SundeNF
no factor from 2^61 to 2^62
2009-01-03Sturle SundeNF
no factor from 2^60 to 2^61