Marin Mersenne 2^P-1
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Exponent Range:










MnStatusDetails
2062483TF
No factors below 269
TF target 262
TF below 2^73 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 13252751
B2 = 221101820940
ECM
DigitsB1Curves
2550000202 / 280
Estimated T-Level: 23.6
LL
StatusDateUserResidueShift
VerifiedMathias Babinsky0643BCA44A37AE1B0
Verified1999-07-04Ben Hampson0643BCA44A37AE1B1537267
Verified2016-08-31Mark Rose0643BCA44A37AE1B1775583
History
DateUserTypeResult
2022-04-23Ryan PropperNF-PM1
B1=13252751, B2=221101820940
2021-08-26TJAOINF
no factor from 2^68 to 2^69
2019-03-25chuenkitNF
no factor from 2^67 to 2^68
2017-02-23mikrNF-PM1
B1=2500000, B2=125000000, E=12
2016-11-06JossNF-PM1
B1=315759
2016-11-04JossNF-PM1
B1=263133
2016-11-03JossNF-PM1
B1=219278
2016-09-28JossNF-PM1
B1=182732, B2=13932000, E=12
2016-08-31Mark RoseC-LL
0643BCA44A37AE1B
2016-08-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-06-26JossNF-PM1
B1=182732, B2=5805000, E=12
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-03ramgeisNF
no factor from 2^65 to 2^66
2015-03-28VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-28VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-28JossNF-PM1
B1=166120
2013-09-01ramgeisNF
no factor from 2^62 to 2^63
2012-03-13Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-21James HeinrichNF-PM1
B1=135000, B2=2902500, E=6
2011-01-06JossNF-PM1
B1=50000
2010-12-26JossNF-PM1
B1=30000
2009-06-22USAFSSNF-PM1
B1=20000, B2=260000
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61