Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
3398111TF
No factors below 270
TF target 264
P-1
B1 = 6100000
B2 = 22018266270
ECM
DigitsB1Curves
2550000115 / 280
Estimated T-Level: 22.1 ⓘ
LL
StatusDateUserResidueShift
VerifiedRobert FribergC6D839F650EC9A120
Verified1999-10-07Alastair KnoxC6D839F650EC9A123234821
History
DateUserTypeResult
2023-05-23Sid & AndyNF-PM1
B1=6100000, B2=22018266270
2023-05-14JossNF-PM1
B1=1000000, B2=887672940
2021-09-05MadPooNF
no factor from 2^69 to 2^70
2021-08-02mikrNF-PM1
B1=4000000, B2=150000000, E=12
2021-06-14TJAOINF
no factor from 2^68 to 2^69
2021-06-05NumberwangNF-PM1
B1=1000000, B2=30000000
2018-08-27TJAOINF
no factor from 2^67 to 2^68
2017-03-12Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-04-05Gordon SpenceNF
no factor from 2^65 to 2^66
2013-10-20David CampeauNF
no factor from 2^64 to 2^65
2012-12-10Squeeky_SquirrelNF-PM1
B1=230000, B2=6727500, E=12
2012-11-02lycornNF
no factor from 2^62 to 2^64
2011-10-25USAFSSNF-PM1
B1=60000, B2=945000, E=6
2011-08-18Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-11Carsten KossendeyNF-PM1
B1=15000, B2=206250
2009-03-24S485122NF
no factor from 2^60 to 2^61