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
6412759Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 266
P-1
B1 = 4000000
B2 = 18004726740
ECM
DigitsB1Curves
2550000102 / 280
Estimated T-Level: 21.8 ⓘ
LL
StatusDateUserResidueShift
Verified1999-09-07David0631FD14C76F412A4778917
Verified2001-02-18Marc Getty / Phil Fizur0631FD14C76F412A2625778
History
DateUserTypeResult
2024-06-14takahashiNF
no factor from 2^72 to 2^73
2023-05-03linamentNF-PM1
B1=4000000, B2=18004726740
2023-05-02linamentNF-PM1
B1=3999900
2022-01-02Architects CubedNF-PM1
B1=1000000, B2=390677430
2021-09-21SRBaseNF
no factor from 2^71 to 2^72
2021-08-12SRBaseNF
no factor from 2^70 to 2^71
2021-02-19takahashiNF
no factor from 2^69 to 2^70
2020-05-12takahashiNF
no factor from 2^68 to 2^69
2018-06-06ramgeisNF
no factor from 2^67 to 2^68
2016-03-25Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-10-23snme2pm1NF
no factor from 2^65 to 2^66
2014-09-17NesowaNF-PM1
B1=390000, B2=9847500, E=12
2014-08-03lycornNF
no factor from 2^64 to 2^65
2014-08-02NesowaNF
no factor from 2^63 to 2^64