Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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Exponent Range:










MnStatusDetails
156768761No known factors, not tested for primality
TF
No factors below 277
TF target 278
P-1
B1 = 1412000
B2 = 1699813500
History
DateUserTypeResult
2025-01-10ElectricBillNF
no factor from 2^76 to 2^77
2024-08-19SRBaseNF
no factor from 2^75 to 2^76
2024-08-10Luke DurantNF-PM1
B1=1412000, B2=1699813500
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-17SRBaseNF
no factor from 2^73 to 2^74
2018-10-25RichardNF
no factor from 2^72 to 2^73
2018-10-19proxy2222NF
no factor from 2^71 to 2^72
2018-03-26proxy2222NF
no factor from 2^70 to 2^71
2017-11-27La GüiraNF
no factor from 2^69 to 2^70
2017-03-10tscNF
no factor from 2^68 to 2^69
2016-05-06James HintzNF
no factor from 2^67 to 2^68
2015-04-16guruNF
no factor from 2^66 to 2^67
2013-02-08sasaki3NF
no factor from 2^65 to 2^66
2011-01-26dslNF
no factor from 2^64 to 2^65