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
142204243Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 277
TF target 277
P-1
B1 = 1198000
B2 = 1333581150
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2025-08-29fcoteA6E9D25B0845AD__013
History
DateUserTypeResult
2025-08-29fcoteC-PRP
A6E9D25B0845AD__
PRP proof power = 8
PRP: Unverified (Reliable)
PRP proof never uploaded
2024-10-02Luke DurantNF-PM1
B1=1198000, B2=1333581150
2024-09-24Ryan PropperNF
no factor from 2^76 to 2^77
2024-07-18SRBaseNF
no factor from 2^75 to 2^76
2023-01-21SRBaseNF
no factor from 2^74 to 2^75
2021-11-06SRBaseNF
no factor from 2^73 to 2^74
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2016-12-04XolotlNF
no factor from 2^71 to 2^72
2016-12-03XolotlNF
no factor from 2^70 to 2^71
2016-12-02XolotlNF
no factor from 2^69 to 2^70
2016-05-29Choi4KANGNF
no factor from 2^68 to 2^69
2016-03-25dbaughNF
no factor from 2^67 to 2^68
2015-02-23aurashiftNF
no factor from 2^66 to 2^67
2012-12-14RichardNF
no factor from 2^65 to 2^66
2010-12-16sannerud.comNF
no factor from 2^64 to 2^65
2010-06-16Torchwood InstituteNF
no factor from 2^63 to 2^64