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
5801987Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 266
P-1
B1 = 3300000
B2 = 7036493100
ECM
DigitsB1Curves
255000074 / 280
Estimated T-Level: 21.3 ⓘ
LL
StatusDateUserResidueShift
Verified1998-09-06Team love_festA357C44D3629C3070
Verified2001-06-23chris clarkA357C44D3629C3071906412
History
DateUserTypeResult
2023-09-24One ManNF
no factor from 2^71 to 2^72
2023-01-11Sid & AndyNF-PM1
B1=3300000, B2=7036493100
2020-12-17-Anonymous-NF
no factor from 2^70 to 2^71
2020-12-14-Anonymous-NF
no factor from 2^69 to 2^70
2020-09-14TJAOINF
no factor from 2^68 to 2^69
2019-07-06USAFSSNF-PM1
B1=350000, B2=10587500, E=12
2018-07-05ramgeisNF
no factor from 2^67 to 2^68
2016-07-10Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-09-12snme2pm1NF
no factor from 2^65 to 2^66
2014-10-19lycornNF
no factor from 2^64 to 2^65
2014-10-09NesowaNF
no factor from 2^63 to 2^64
2011-04-20USAFSSNF-PM1
B1=65000, B2=1088750, E=6