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
2684477Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 20000000
B2 = 54443613840
ECM
DigitsB1Curves
2550000280 / 280
3025000059 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedTimo Aaltonen and friends3F255B418AF632920
Verified1999-05-02Brian Nebeker3F255B418AF63292465643
Verified2018-07-27kkmrkkblmbrbk3F255B418AF632921184786
History
DateUserTypeResult
2024-01-19TJAOINF
no factor from 2^69 to 2^70
2023-01-01kurlyNF-PM1
B1=20000000, B2=54443613840
2021-07-26TJAOINF
no factor from 2^68 to 2^69
2019-07-04BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2019-05-06TJAOINF
no factor from 2^67 to 2^68
2018-09-03JossNF-PM1
B1=486603
2018-07-27kkmrkkblmbrbkC-LL
3F255B418AF63292
2017-09-13Gordon SpenceNF
no factor from 2^66 to 2^67
2017-04-07JossNF-PM1
B1=335503, B2=3355030, E=6
2017-01-10JossNF-PM1
B1=232989
2016-12-19JossNF-PM1
B1=194158
2016-06-15JossNF-PM1
B1=161799, B2=4567500, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-01-26ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-05-10markrNF
no factor from 2^61 to 2^62
2010-12-16markrNF-PM1
B1=105000, B2=2283750, E=6
2010-12-15JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61