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
30212981Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 271
P-1
B1 = 650627
B2 = 13012540
LL
StatusDateUserResidueShift
Verified2007-12-03Stephen Wood33C47EAE567CF68D19174672
Verified2012-09-16-Anonymous-33C47EAE567CF68D22641667
History
DateUserTypeResult
2020-11-13-Anonymous-NF
no factor from 2^74 to 2^75
2020-08-05GdSNF-PM1
B1=650627, B2=13012540, E=12
2020-04-11-Anonymous-NF
no factor from 2^73 to 2^74
2019-12-14-Anonymous-NF
no factor from 2^72 to 2^73
2019-12-14-Anonymous-NF
no factor from 2^71 to 2^72
2017-08-04ramgeisNF
no factor from 2^70 to 2^71
2012-09-16-Anonymous-C-LL
33C47EAE567CF68D
2012-03-29bcp19NF
no factor from 2^69 to 2^70
2012-03-29bcp19NF
no factor from 2^68 to 2^69