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
142907881No known factors, not tested for primality
TF
No factors below 277
TF target 277
P-1
B1 = 1257000
B2 = 1526711010
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-07-28-Anonymous-PRP test0.00 % 2025-09-20
History
DateUserTypeResult
2024-10-04tbusbyNF
no factor from 2^76 to 2^77
2024-10-04Luke DurantNF-PM1
B1=1257000, B2=1526711010
2024-01-181997rj7NF
no factor from 2^75 to 2^76
2023-02-22SRBaseNF
no factor from 2^74 to 2^75
2021-11-12SRBaseNF
no factor from 2^73 to 2^74
2020-11-16SRBaseNF
no factor from 2^72 to 2^73
2016-06-03bastrogueNF
no factor from 2^71 to 2^72
2016-05-24Mihai PredaNF
no factor from 2^70 to 2^71
2016-04-24Mihai PredaNF
no factor from 2^69 to 2^70
2016-04-15Mihai PredaNF
no factor from 2^68 to 2^69
2016-03-31dbaughNF
no factor from 2^67 to 2^68
2015-03-03RichardNF
no factor from 2^66 to 2^67
2012-12-12YxinityNF
no factor from 2^65 to 2^66
2010-12-18AntonNF
no factor from 2^64 to 2^65
2010-06-21RichardNF
no factor from 2^63 to 2^64