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
138387247No known factors, not tested for primality
TF
No factors below 277
TF target 277
P-1
B1 = 1053000
B2 = 522158910
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-09-01Rob SartainPRP testPRP25.28 % 2025-09-12
History
DateUserTypeResult
2024-09-21Jacques MOLNENF-PM1
B1=1053000, B2=522158910
2024-08-23Ryan PropperNF
no factor from 2^76 to 2^77
2024-07-15SRBaseNF
no factor from 2^75 to 2^76
2023-01-13SRBaseNF
no factor from 2^74 to 2^75
2021-08-02SRBaseNF
no factor from 2^73 to 2^74
2020-10-23SRBaseNF
no factor from 2^72 to 2^73
2017-03-06naturegeakNF
no factor from 2^71 to 2^72
2016-04-04guruNF
no factor from 2^70 to 2^71
2016-03-25dbaughNF
no factor from 2^69 to 2^70
2016-02-26Ready4PrimeTimeNF
no factor from 2^68 to 2^69
2016-02-23Ready4PrimeTimeNF
no factor from 2^67 to 2^68
2015-02-07Mr-PlonkNF
no factor from 2^66 to 2^67
2012-11-17ALSNF
no factor from 2^65 to 2^66
2010-12-03sasaki3NF
no factor from 2^64 to 2^65
2010-06-12Charles A. MorrisNF
no factor from 2^63 to 2^64