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
18230419Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1200000
B2 = 515010210
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-06-23Daniel LoydE358DA8590635F2714544457
Verified2006-11-28Phil NelsonE358DA8590635F2717356997
History
DateUserTypeResult
2022-03-07Sid & AndyNF-PM1
B1=1200000, B2=515010210
2021-11-19-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-11SRBaseNF
no factor from 2^70 to 2^71
2020-03-01lycornNF
no factor from 2^69 to 2^70
2017-09-14ramgeisNF
no factor from 2^68 to 2^69
2017-09-14ramgeisNF
no factor from 2^67 to 2^68
2016-03-22Mark RoseNF
no factor from 2^66 to 2^67