Marin Mersenne 2^P-1
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GIMPS
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Exponent Range:










MnStatusDetails
1535587TF
No factors below 268
TF target 261
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10001000
B2 = 17741407320
ECM
DigitsB1Curves
2550000280 / 280
30250000103 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedLesBAF118A42F836E0E0
Verified1998-11-07Paul Victor NovareseBAF118A42F836E0E1100134
Verified2015-07-21MadPooBAF118A42F836E0E803227
History
DateUserTypeResult
2023-06-28JossNF-PM1
B1=10001000, B2=17741407320
2023-02-21JossNF-PM1
B1=10001000, B2=3563469000
2022-12-23JossNF-PM1
B1=10001000, B2=1200523170
2018-06-06ramgeisNF
no factor from 2^67 to 2^68
2018-02-19TJAOINF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^61 to 2^62
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-10-11ramgeisNF
no factor from 2^65 to 2^66
2015-07-21MadPooC-LL
BAF118A42F836E0E
2015-03-03VictordeHollanderNF-PM1
B1=10000000, B2=200000000, E=12
2015-02-08snme2pm1NF
no factor from 2^64 to 2^65
2015-02-08snme2pm1NF
no factor from 2^63 to 2^64
2013-09-28David CampeauNF-PM1
B1=945000, B2=27405000, E=12
2011-02-01James HeinrichNF-PM1
B1=80000, B2=1340000, E=6
2010-05-04GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-04-25Architects CubedNF
no factor from 2^60 to 2^61