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
143438237No known factors, not tested for primality
TF
No factors below 278
TF target 277
P-1
B1 = 885000
B2 = 92330280
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-09-21-Anonymous-PRP test0.00 % 2025-09-21
History
DateUserTypeResult
2024-11-03RichardNF
no factor from 2^77 to 2^78
2024-10-30ihnlNF
no factor from 2^76 to 2^77
2024-10-06Ryan PropperNF-PM1
B1=885000, B2=92330280
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^70 to 2^71
2023-01-25SRBaseNF
no factor from 2^74 to 2^75
2021-11-09SRBaseNF
no factor from 2^73 to 2^74
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2017-06-02Yves de WandelaarNF
no factor from 2^71 to 2^72
2016-12-12Josh FamestadNF
no factor from 2^70 to 2^71
2016-12-02La GüiraNF
no factor from 2^69 to 2^70
2016-04-23Andreas_TruetschNF
no factor from 2^68 to 2^69
2016-04-04dbaughNF
no factor from 2^67 to 2^68
2015-02-26tscNF
no factor from 2^66 to 2^67
2012-12-16tscNF
no factor from 2^65 to 2^66
2010-12-20sasaki3NF
no factor from 2^64 to 2^65
2010-06-17Torchwood InstituteNF
no factor from 2^63 to 2^64