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
155710703No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 638000
B2 = 17360000
History
DateUserTypeResult
2025-08-12Wojciech FlorekNF-PM1
B1=638000, B2=17360000
2025-05-29brian-nebiusNF
no factor from 2^77 to 2^78
2024-11-09zhangstNF
no factor from 2^76 to 2^77
2024-08-16SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-02-18SRBaseNF
no factor from 2^74 to 2^75
2017-07-31AyczlyNF
no factor from 2^73 to 2^74
2017-07-31AyczlyNF
no factor from 2^72 to 2^73
2017-07-31AyczlyNF
no factor from 2^71 to 2^72
2017-07-31AyczlyNF
no factor from 2^70 to 2^71
2017-01-31nuclear-smilieNF
no factor from 2^69 to 2^70
2016-07-21Josh FamestadNF
no factor from 2^68 to 2^69
2016-05-04OS1NF
no factor from 2^67 to 2^68
2015-04-12vwflat4NF
no factor from 2^66 to 2^67
2013-02-18firereddNF
no factor from 2^65 to 2^66
2011-01-25Nathan EdingtonNF
no factor from 2^64 to 2^65