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
43830289Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 535000
B2 = 16183750
LL
StatusDateUserResidueShift
Verified2008-10-26S48512227D0F00781AF397F13466836
Verified2016-01-28Frissnix27D0F00781AF397F29299118
History
DateUserTypeResult
2018-08-08-Anonymous-NF
no factor from 2^72 to 2^73
2016-01-28FrissnixC-LL
27D0F00781AF397F
2015-10-09-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-16VictordeHollanderNF
no factor from 2^70 to 2^71
2015-03-23chalsallNF
no factor from 2^69 to 2^70
2014-04-25AxelssonNF
no factor from 2^68 to 2^69
2008-10-26S485122C-LL
27D0F00781AF397F