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
20170751Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 600000
B2 = 115183530
LL
StatusDateUserResidueShift
Verified2004-07-26Lawrence V. Castiglione IIIB4A517E57E2FDC5E119800
Verified2007-12-03Scott D. BardwickB4A517E57E2FDC5E561534
History
DateUserTypeResult
2022-01-04Denial140NF-PM1
B1=600000, B2=115183530
2022-01-03ZacHFXNF
no factor from 2^73 to 2^74
2021-11-12-Anonymous-NF
no factor from 2^72 to 2^73
2021-09-19-Anonymous-NF
no factor from 2^71 to 2^72
2020-04-17Gordon SpenceNF
no factor from 2^70 to 2^71
2018-01-30ramgeisNF
no factor from 2^69 to 2^70
2017-11-16VictordeHollanderNF
no factor from 2^68 to 2^69
2017-04-28ramgeisNF
no factor from 2^67 to 2^68
2015-02-09NRNF
no factor from 2^66 to 2^67