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
161040557No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 1396000
B2 = 1530813570
History
DateUserTypeResult
2025-08-26S36049NF
no factor from 2^77 to 2^78
2025-08-19Random GPUsNF
no factor from 2^76 to 2^77
2024-10-08Luke DurantNF-PM1
B1=1396000, B2=1530813570
2024-08-29SRBaseNF
no factor from 2^75 to 2^76
2023-03-04SRBaseNF
no factor from 2^74 to 2^75
2021-11-24SRBaseNF
no factor from 2^73 to 2^74
2018-12-17RichardNF
no factor from 2^72 to 2^73
2018-12-10Peter PNF
no factor from 2^71 to 2^72
2018-06-13Torikova_SvetlanaNF
no factor from 2^70 to 2^71
2014-12-22La GüiraNF
no factor from 2^69 to 2^70
2014-12-22La GüiraNF
no factor from 2^68 to 2^69
2014-12-22La GüiraNF
no factor from 2^66 to 2^68
2013-02-25tscNF
no factor from 2^65 to 2^66
2011-02-03steinrarNF
no factor from 2^64 to 2^65
2010-06-29Mr-PlonkNF
no factor from 2^63 to 2^64