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
6059369Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 266
P-1
B1 = 4300000
B2 = 4550243082
ECM
DigitsB1Curves
255000096 / 280
Estimated T-Level: 21.7 ⓘ
LL
StatusDateUserResidueShift
Verified1999-11-10Mike Cobb730A5FC5A61CA50C2247073
Verified2001-04-15Marc Getty / Phil Fizur730A5FC5A61CA50C814572
History
DateUserTypeResult
2024-05-05Sid & AndyNF-PM1
B1=4300000, B2=4550243082
2022-05-10takahashiNF-PM1
B1=2500000, B2=50000000
2022-02-28takahashiNF
no factor from 2^72 to 2^73
2021-10-24SRBaseNF
no factor from 2^71 to 2^72
2021-02-10takahashiNF
no factor from 2^70 to 2^71
2020-10-07takahashiNF
no factor from 2^69 to 2^70
2020-03-05takahashiNF
no factor from 2^68 to 2^69
2019-06-10takahashiNF-PM1
B1=400000, B2=7500000, E=12
2018-05-29ramgeisNF
no factor from 2^67 to 2^68
2016-03-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^1 to 2^63
2015-10-07snme2pm1NF
no factor from 2^65 to 2^66
2014-09-16monstNF
no factor from 2^64 to 2^65
2014-09-12NesowaNF
no factor from 2^63 to 2^64
2013-03-05Squeeky_SquirrelNF-PM1
B1=110000, B2=2200000, E=6