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
16559671Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 2000000
B2 = 5438460300
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2002-11-02Steve Nicholson66BAF0510C32EF091472930
Verified2007-09-28Daniel Swanson66BAF0510C32EF0911832923
History
DateUserTypeResult
2024-08-14linamentNF-PM1
B1=2000000, B2=5438460300
2024-08-12linamentNF-PM1
B1=2000000
2022-03-05Architects CubedNF-PM1
B1=628000, B2=32343000
2021-11-06Dylan DelgadoNF
no factor from 2^72 to 2^73
2021-09-17-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-28ChuckNF
no factor from 2^70 to 2^71
2021-02-10Alex KruppaNF
no factor from 2^69 to 2^70
2018-03-11ramgeisNF
no factor from 2^68 to 2^69
2018-03-11ramgeisNF
no factor from 2^67 to 2^68
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-09-07NesowaNF
no factor from 2^66 to 2^67