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
17788153Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 500458530
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-02-09B.Courty14D30869FB40136317575804
Verified2006-11-28Roy Oswald14D30869FB40136310886945
History
DateUserTypeResult
2023-04-24Sid & AndyNF
no factor from 2^72 to 2^73
2022-06-23alpertronNF-PM1
B1=1000000, B2=500458530
2021-09-24-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-10SRBaseNF
no factor from 2^70 to 2^71
2020-04-14lycornNF
no factor from 2^69 to 2^70
2018-02-11ramgeisNF
no factor from 2^68 to 2^69
2018-02-11ramgeisNF
no factor from 2^67 to 2^68
2014-08-23NesowaNF
no factor from 2^66 to 2^67
2013-09-21David CampeauNF
no factor from 2^65 to 2^66