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
2998747Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 264
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 41982460
B2 = 1150099060110
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8
LL
StatusDateUserResidueShift
VerifiedMarc-Etienne VargenauDAA1F501FFBD43500
Verified1998-05-08Cindy MarascoDAA1F501FFBD43500
Verified2015-11-14MadPooDAA1F501FFBD43502738324
History
DateUserTypeResult
2024-10-31yuriy5-1NF-PM1
B1=41982460, B2=1150099060110
2023-08-25ThaNF-PM1
B1=5000000, B2=28404656280
2023-06-03JossNF-PM1
B1=1000000, B2=1779277500
2023-03-14JossNF-PM1
B1=1000000, B2=284427990
2023-01-27TJAOINF
no factor from 2^69 to 2^70
2021-04-15TJAOINF
no factor from 2^68 to 2^69
2019-12-01BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2018-12-30chuenkitNF
no factor from 2^67 to 2^68
2017-12-07Gordon SpenceNF
no factor from 2^66 to 2^67
2017-04-12JossNF-PM1
B1=644971, B2=6449710, E=12
2017-04-07JossNF-PM1
B1=537476, B2=5374760, E=6
2017-04-04JossNF-PM1
B1=447897, B2=4478970, E=6
2017-04-01JossNF-PM1
B1=373248, B2=3732480, E=6
2017-03-02JossNF-PM1
B1=311040, B2=3110400, E=6
2016-12-23JossNF-PM1
B1=216000
2016-12-16JossNF-PM1
B1=180000
2016-10-09JossNF-PM1
B1=150000, B2=15000000, E=12
2016-09-21JossNF-PM1
B1=150000, B2=2894925
2016-09-12JossNF-PM1
B1=150000, B2=2631750, E=6
2016-02-25ramgeisNF
no factor from 2^65 to 2^66
2015-11-14MadPooC-LL
DAA1F501FFBD4350
2015-02-01lycornNF
no factor from 2^64 to 2^65
2015-02-01lycornNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-11-26Grant McCrackenNF
no factor from 2^61 to 2^62
2010-10-19markrNF-PM1
B1=110000, B2=2392500, E=6
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61