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
5553277TF
No factors below 272
TF target 266
P-1
B1 = 5000000
B2 = 6937016394
ECM
DigitsB1Curves
25500009 / 280
Estimated T-Level: 20.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedJames BullingtonFBD21A8BA25BD8DB0
Verified2000-11-15Marc Getty / Phil FizurFBD21A8BA25BD8DB5503525
History
DateUserTypeResult
2022-08-13Sid & AndyNF-PM1
B1=5000000, B2=6937016394
2021-09-21SRBaseNF
no factor from 2^71 to 2^72
2021-08-25SRBaseNF
no factor from 2^70 to 2^71
2021-08-20SRBaseNF
no factor from 2^69 to 2^70
2020-09-21TJAOINF
no factor from 2^68 to 2^69
2019-09-26USAFSSNF-PM1
B1=335000, B2=9882500, E=12
2019-09-22GdSNF-PM1
B1=200000, B2=6000000, E=12
2018-07-05ramgeisNF
no factor from 2^67 to 2^68
2016-07-27Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^62
2015-09-02snme2pm1NF
no factor from 2^65 to 2^66
2014-12-15monstNF
no factor from 2^64 to 2^65
2014-12-14NesowaNF
no factor from 2^63 to 2^64
2010-11-25Squeeky_SquirrelNF-PM1
B1=65000, B2=1121250, E=6
2009-04-23GrunwalderGIMPNF
no factor from 2^62 to 2^63