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
158262817No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 866000
B2 = 39890340
History
DateUserTypeResult
2025-06-15ElectricBillNF
no factor from 2^77 to 2^78
2025-06-04Gordon BowerNF
no factor from 2^76 to 2^77
2024-09-17Ryan PropperNF-PM1
B1=866000, B2=39890340
2024-08-26SRBaseNF
no factor from 2^75 to 2^76
2023-03-01SRBaseNF
no factor from 2^74 to 2^75
2021-11-29SRBaseNF
no factor from 2^73 to 2^74
2017-11-10Will EdgingtonNF
no factor from 2^72 to 2^73
2017-11-08Will EdgingtonNF
no factor from 2^71 to 2^72
2017-11-08Will EdgingtonNF
no factor from 2^70 to 2^71
2017-11-06JunmingNF
no factor from 2^69 to 2^70
2016-07-23DerekNF
no factor from 2^68 to 2^69
2016-05-12arnieNF
no factor from 2^67 to 2^68
2015-04-24tscNF
no factor from 2^66 to 2^67
2013-02-14Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-01-29runeskNF
no factor from 2^64 to 2^65
2010-06-29garoNF
no factor from 2^63 to 2^64