Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
181221869Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 278
P-1
B1 = 1544000
B2 = 1461796050
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-10-31-Anonymous-FFF7DC7B004777D89180733613
History
DateUserTypeResult
2024-10-31Luke DurantCERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-10-31-Anonymous-C-PRP
FFF7DC7B004777D8
PRP proof power = 8
PRP: Verified
Proof certified good
2024-10-01Luke DurantNF-PM1
B1=1544000, B2=1461796050
2024-09-22tscNF
no factor from 2^75 to 2^76
2023-04-09SRBaseNF
no factor from 2^74 to 2^75
2022-01-06SRBaseNF
no factor from 2^73 to 2^74
2018-06-24FredBRNF
no factor from 2^72 to 2^73
2018-04-15AJNF
no factor from 2^71 to 2^72
2018-04-14MasterofpwnageNF
no factor from 2^70 to 2^71
2018-04-06ZenghuiNF
no factor from 2^69 to 2^70
2017-06-01Andrew BNF
no factor from 2^68 to 2^69
2016-07-07tscNF
no factor from 2^67 to 2^68
2015-07-27Judge HaleNF
no factor from 2^66 to 2^67
2013-05-05bamNF
no factor from 2^65 to 2^66
2011-03-22GrunwalderGIMPNF
no factor from 2^64 to 2^65
2010-07-23sasaki3NF
no factor from 2^63 to 2^64