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
158271181No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 1298000
B2 = 836923230
History
DateUserTypeResult
2025-06-15brian-nebiusNF
no factor from 2^77 to 2^78
2025-06-06Gordon BowerNF
no factor from 2^76 to 2^77
2024-10-03Luke DurantNF-PM1
B1=1298000, B2=836923230
2024-08-22SRBaseNF
no factor from 2^75 to 2^76
2023-02-26SRBaseNF
no factor from 2^74 to 2^75
2021-11-20SRBaseNF
no factor from 2^73 to 2^74
2017-11-06AK76NF
no factor from 2^72 to 2^73
2017-11-06AK76NF
no factor from 2^71 to 2^72
2017-11-06AK76NF
no factor from 2^70 to 2^71
2017-11-06AK76NF
no factor from 2^69 to 2^70
2016-08-01Adam BuranNF
no factor from 2^68 to 2^69
2016-05-12ANONYMOUSNF
no factor from 2^67 to 2^68
2015-04-24tscNF
no factor from 2^66 to 2^67
2013-04-06RMAC9.5NF
no factor from 2^65 to 2^66
2011-01-29Mr-PlonkNF
no factor from 2^64 to 2^65
2010-07-01RichardNF
no factor from 2^63 to 2^64