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
151331989No known factors, not tested for primality
TF
No factors below 278
TF target 277
P-1
B1 = 782000
B2 = 37499070
History
DateUserTypeResult
2025-09-080xNF
no factor from 2^77 to 2^78
2025-02-13mezonNF
no factor from 2^76 to 2^77
2024-09-11Ryan PropperNF-PM1
B1=782000, B2=37499070
2024-08-04SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-02-06SRBaseNF
no factor from 2^74 to 2^75
2021-11-14SRBaseNF
no factor from 2^73 to 2^74
2017-10-14David HruskaNF
no factor from 2^72 to 2^73
2017-09-08David HruskaNF
no factor from 2^71 to 2^72
2017-08-01Andrew BNF
no factor from 2^70 to 2^71
2017-07-26Alexander DresslerNF
no factor from 2^69 to 2^70
2016-07-21Josh FamestadNF
no factor from 2^68 to 2^69
2016-04-19Dave BellNF
no factor from 2^67 to 2^68
2015-05-23rubikvn2100NF
no factor from 2^66 to 2^67
2013-01-18sasaki3NF
no factor from 2^65 to 2^66
2011-01-14DerekNF
no factor from 2^64 to 2^65
2010-06-23rabbutNF
no factor from 2^63 to 2^64