Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2366743Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^73 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 14300000
B2 = 36648412710
ECM
DigitsB1Curves
2550000200 / 280
Estimated T-Level: 23.6 ⓘ
LL
StatusDateUserResidueShift
VerifiedJohn Lloyd742E246AFFACEE9C0
Verified2001-01-14Matthias Müller742E246AFFACEE9C2292691
Verified2018-05-12kkmrkkblmbrbk742E246AFFACEE9C1829818
History
DateUserTypeResult
2024-03-15TJAOINF
no factor from 2^69 to 2^70
2023-06-12Sid & AndyNF-PM1
B1=14300000, B2=36648412710
2023-03-21JossNF-PM1
B1=1000000, B2=1647746100
2023-01-22JossNF-PM1
B1=1000000, B2=571651080
2021-06-24TJAOINF
no factor from 2^68 to 2^69
2019-04-15TJAOINF
no factor from 2^67 to 2^68
2018-05-12kkmrkkblmbrbkC-LL
742E246AFFACEE9C
2017-06-16Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-30ramgeisNF
no factor from 2^65 to 2^66
2015-09-14mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-03-09VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-09VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-10JossNF-PM1
B1=127119
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-05-30Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-30markrNF-PM1
B1=100000, B2=2025000, E=6
2010-11-03JossNF-PM1
B1=20000
2009-01-15Sturle SundeNF
no factor from 2^60 to 2^61