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
2264609Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 262
TF below 2^82 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9700000
B2 = 49940763180
ECM
DigitsB1Curves
2550000280 / 280
30250000150 / 640
Estimated T-Level: 26.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedThe Grebelius Family58ACC359F4573BE90
Verified1999-03-15Glenn Jensen58ACC359F4573BE91917300
Verified2018-04-25kkmrkkblmbrbk58ACC359F4573BE91081409
History
DateUserTypeResult
2024-04-19TJAOINF
no factor from 2^69 to 2^70
2023-08-19Sid & AndyNF-PM1
B1=9700000, B2=49940763180
2023-07-09JossNF-PM1
B1=1000000, B2=3799936140
2023-03-07JossNF-PM1
B1=1000000, B2=1647746100
2022-11-23JossNF-PM1
B1=1000000, B2=571651080
2021-07-05TJAOINF
no factor from 2^68 to 2^69
2019-06-30BigBrotherNF-PM1
B1=1000000, B2=20000000, E=12
2019-05-06TJAOINF
no factor from 2^67 to 2^68
2018-04-25kkmrkkblmbrbkC-LL
58ACC359F4573BE9
2017-01-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-31JossNF-PM1
B1=342144, B2=3421440, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-30ramgeisNF
no factor from 2^65 to 2^66
2015-03-10VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-10VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-02JossNF-PM1
B1=128342
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-04markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-12JossNF-PM1
B1=30000
2010-11-06JossNF-PM1
B1=15000
2009-01-14Sturle SundeNF
no factor from 2^60 to 2^61