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
156862789No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 1366000
B2 = 1442911680
History
DateUserTypeResult
2025-06-19ElectricBillNF
no factor from 2^77 to 2^78
2025-01-10JurzalNF
no factor from 2^76 to 2^77
2024-09-28Luke DurantNF-PM1
B1=1366000, B2=1442911680
2024-08-26SRBaseNF
no factor from 2^75 to 2^76
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-18SRBaseNF
no factor from 2^73 to 2^74
2018-04-18hktNF
no factor from 2^72 to 2^73
2018-04-18hktNF
no factor from 2^71 to 2^72
2018-03-31proxy2222NF
no factor from 2^70 to 2^71
2017-12-01La GüiraNF
no factor from 2^69 to 2^70
2017-03-09XolotlNF
no factor from 2^68 to 2^69
2016-05-07BrionHNF
no factor from 2^67 to 2^68
2015-04-25RichardNF
no factor from 2^66 to 2^67
2013-02-08Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-01-26dslNF
no factor from 2^64 to 2^65