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
17998349Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 2000000
B2 = 664181100
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-02-27stickelberger27DEBF10B1E5CEED17502534
Verified2007-01-01Stefan Heidrich27DEBF10B1E5CEED4736598
History
DateUserTypeResult
2024-10-19masserNF-PM1
B1=2000000, B2=664181100
2022-01-11TheJudgerNF
no factor from 2^73 to 2^74
2021-11-09Dylan DelgadoNF
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
2020-03-15lycornNF
no factor from 2^69 to 2^70
2018-02-18ramgeisNF
no factor from 2^68 to 2^69
2018-02-18ramgeisNF
no factor from 2^67 to 2^68
2014-08-19NesowaNF
no factor from 2^66 to 2^67