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
155298421No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 939000
B2 = 94202724
History
DateUserTypeResult
2025-06-210xNF
no factor from 2^77 to 2^78
2025-01-11RichardNF
no factor from 2^76 to 2^77
2024-09-29Ryan PropperNF-PM1
B1=939000, B2=94202724
2024-08-13SRBaseNF
no factor from 2^75 to 2^76
2023-02-16SRBaseNF
no factor from 2^74 to 2^75
2021-11-15SRBaseNF
no factor from 2^73 to 2^74
2018-06-16Yves de WandelaarNF
no factor from 2^72 to 2^73
2017-12-15Oliver KruseNF
no factor from 2^71 to 2^72
2017-12-15shawyiiNF
no factor from 2^70 to 2^71
2017-08-19La GüiraNF
no factor from 2^69 to 2^70
2016-07-28Mihai PredaNF
no factor from 2^68 to 2^69
2016-05-05DerekNF
no factor from 2^67 to 2^68
2015-04-10rubikvn2100NF
no factor from 2^66 to 2^67
2013-02-03sasaki3NF
no factor from 2^65 to 2^66
2011-01-23dslNF
no factor from 2^64 to 2^65