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
18932461Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 3422000
B2 = 11960678730
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2003-11-28Will Wilkinson37FBBB0D77FEC2C915881631
Verified2007-02-20Stan Garnier de Boisgrollier37FBBB0D77FEC2C918641184
History
DateUserTypeResult
2024-08-10Jason LynchNF-PM1
B1=3422000, B2=11960678730
2022-01-04-Anonymous-NF
no factor from 2^73 to 2^74
2021-11-26-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-12SRBaseNF
no factor from 2^70 to 2^71
2020-01-17lycornNF
no factor from 2^69 to 2^70
2017-09-19ramgeisNF
no factor from 2^68 to 2^69
2017-09-19ramgeisNF
no factor from 2^67 to 2^68
2014-07-29NesowaNF
no factor from 2^66 to 2^67