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
2274407Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 262
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 9700000
B2 = 49940763180
ECM
DigitsB1Curves
2550000280 / 280
30250000121 / 640
Estimated T-Level: 25.9 ⓘ
LL
StatusDateUserResidueShift
VerifiedWayne Scott0C6F93203875FE310
Verified1999-07-04Viatcheslav Sapronenko0C6F93203875FE311373168
Verified2018-04-26kkmrkkblmbrbk0C6F93203875FE31584011
History
DateUserTypeResult
2024-04-05TJAOINF
no factor from 2^69 to 2^70
2023-08-21Sid & AndyNF-PM1
B1=9700000, B2=49940763180
2023-07-10JossNF-PM1
B1=1000000, B2=3799936140
2023-03-20JossNF-PM1
B1=1000000, B2=1647746100
2022-11-24JossNF-PM1
B1=1000000, B2=571651080
2021-06-17TJAOINF
no factor from 2^68 to 2^69
2021-04-03Dylan DelgadoNF-PM1
B1=660000, B2=40920000
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-04-26kkmrkkblmbrbkC-LL
0C6F93203875FE31
2017-10-04JossNF-PM1
B1=544320, B2=5443200, E=6
2017-01-15Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-06JossNF-PM1
B1=272160, B2=4898880, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-31ramgeisNF
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
2014-09-15-Anonymous-NF-PM1
B1=133220
2013-12-06Jerry HallettNF
no factor from 2^62 to 2^63
2012-05-06Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-01markrNF-PM1
B1=105000, B2=2152500, E=6
2010-11-13JossNF-PM1
B1=30000
2010-11-06JossNF-PM1
B1=15000
2009-01-11Sturle SundeNF
no factor from 2^60 to 2^61