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
160861189No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 972000
B2 = 94471146
History
DateUserTypeResult
2025-08-26GregNF
no factor from 2^77 to 2^78
2025-08-24Andrew BNF
no factor from 2^76 to 2^77
2024-10-09Ryan PropperNF-PM1
B1=972000, B2=94471146
2024-09-01SRBaseNF
no factor from 2^75 to 2^76
2023-03-01SRBaseNF
no factor from 2^74 to 2^75
2021-11-24SRBaseNF
no factor from 2^73 to 2^74
2018-02-04JMGarciaNF
no factor from 2^72 to 2^73
2018-02-03Russ42NF
no factor from 2^71 to 2^72
2018-01-27ZenghuiNF
no factor from 2^70 to 2^71
2018-01-22La GüiraNF
no factor from 2^69 to 2^70
2017-03-28XolotlNF
no factor from 2^68 to 2^69
2016-03-12XZTNF
no factor from 2^67 to 2^68
2015-05-05tscNF
no factor from 2^66 to 2^67
2013-02-24Charles A. MorrisNF
no factor from 2^65 to 2^66
2011-02-02UngelovendeNF
no factor from 2^64 to 2^65
2010-06-29Mr-PlonkNF
no factor from 2^63 to 2^64