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
856531447No known factors, not tested for primality
TF
No factors below 275
TF target 285
History
DateUserTypeResult
2024-06-19SRBaseNF
no factor from 2^74 to 2^75
2022-12-11SRBaseNF
no factor from 2^73 to 2^74
2021-06-12SRBaseNF
no factor from 2^72 to 2^73
2020-10-13SRBaseNF
no factor from 2^71 to 2^72
2019-03-12srow7NF
no factor from 2^70 to 2^71
2017-01-01ramgeisNF
no factor from 2^68 to 2^70
2015-09-02sasakiNF
no factor from 2^67 to 2^68
2015-03-01sasakiNF
no factor from 2^66 to 2^67
2012-04-08David CampeauNF
no factor from 2^64 to 2^66
2010-07-22lindedNF
no factor from 2^63 to 2^64