Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
3061739Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9000000
B2 = 23085969270
ECM
DigitsB1Curves
2550000280 / 280
3025000065 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedHenrik FlodellF9A69ADF2D2FF56D0
Verified1999-08-22Dave BarkerF9A69ADF2D2FF56D583612
History
DateUserTypeResult
2023-01-15Sid & AndyNF-PM1
B1=9000000, B2=23085969270
2022-11-16mikrNF
no factor from 2^70 to 2^71
2022-05-17mikrNF
no factor from 2^69 to 2^70
2021-04-06TJAOINF
no factor from 2^68 to 2^69
2018-07-30ramgeisNF
no factor from 2^67 to 2^68
2017-11-22mikrNF-PM1
B1=3000000, B2=100000000, E=12
2017-05-09Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-26Squeeky_SquirrelNF-PM1
B1=205000, B2=5740000, E=12
2015-06-06ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-10-08Sid & AndyNF
no factor from 2^61 to 2^62
2010-09-25markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61