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
148706263No known factors, not tested for primality
TF
No factors below 278
TF target 277
P-1
B1 = 768000
B2 = 37084530
History
DateUserTypeResult
2025-10-12COMPUTRON9001NF
no factor from 2^77 to 2^78
2025-02-28Andrew2187NF
no factor from 2^76 to 2^77
2024-09-18Ryan PropperNF-PM1
B1=768000, B2=37084530
2024-07-27SRBaseNF
no factor from 2^75 to 2^76
2023-02-03SRBaseNF
no factor from 2^74 to 2^75
2017-11-18La GüiraNF
no factor from 2^73 to 2^74
2017-11-18La GüiraNF
no factor from 2^72 to 2^73
2017-09-03Choi4KANGNF
no factor from 2^72 to 2^73
2017-01-12andrew irwinNF
no factor from 2^71 to 2^72
2017-01-08kevshawNF
no factor from 2^70 to 2^71
2017-01-01jonthomsonNF
no factor from 2^69 to 2^70
2016-12-30f0rteOCNF
no factor from 2^68 to 2^69
2016-04-03DerekNF
no factor from 2^67 to 2^68
2015-03-13ANONYMOUSNF
no factor from 2^66 to 2^67
2013-01-06Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-01-08RichardNF
no factor from 2^64 to 2^65