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
156816433No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 957000
B2 = 95652942
History
DateUserTypeResult
2025-06-19brian-nebiusNF
no factor from 2^77 to 2^78
2025-01-10gLaussNF
no factor from 2^76 to 2^77
2024-10-01Ryan PropperNF-PM1
B1=957000, B2=95652942
2024-08-26SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-03-06SRBaseNF
no factor from 2^74 to 2^75
2021-11-17SRBaseNF
no factor from 2^73 to 2^74
2018-03-14RichardNF
no factor from 2^72 to 2^73
2018-03-14RichardNF
no factor from 2^71 to 2^72
2018-03-14RichardNF
no factor from 2^70 to 2^71
2016-08-11La GüiraNF
no factor from 2^69 to 2^70
2016-07-22Josh FamestadNF
no factor from 2^68 to 2^69
2016-05-06rmaximusNF
no factor from 2^67 to 2^68
2015-04-16YN-MuworksNF
no factor from 2^66 to 2^67
2013-02-15GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-01-29RichardNF
no factor from 2^64 to 2^65