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
158758183No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 826000
B2 = 39332790
History
DateUserTypeResult
2025-07-31GregNF
no factor from 2^77 to 2^78
2025-06-30GregNF
no factor from 2^76 to 2^77
2024-09-19Ryan PropperNF-PM1
B1=826000, B2=39332790
2024-08-26SRBaseNF
no factor from 2^75 to 2^76
2023-02-26SRBaseNF
no factor from 2^74 to 2^75
2021-11-21SRBaseNF
no factor from 2^73 to 2^74
2019-03-04proxy2222NF
no factor from 2^72 to 2^73
2018-08-15Choi4KANGNF
no factor from 2^71 to 2^72
2018-04-12Choi4KANGNF
no factor from 2^70 to 2^71
2017-12-12La GüiraNF
no factor from 2^69 to 2^70
2017-03-13XolotlNF
no factor from 2^68 to 2^69
2016-05-15NikoNF
no factor from 2^67 to 2^68
2015-04-26guruNF
no factor from 2^66 to 2^67
2013-02-19RichardNF
no factor from 2^65 to 2^66
2011-01-30UngelovendeNF
no factor from 2^64 to 2^65
2010-06-28Mr-PlonkNF
no factor from 2^63 to 2^64