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
131228281Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1058000
B2 = 765536310
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-09-09Luke DurantD6AC9D097AAF4AF1013
History
DateUserTypeResult
2024-09-09JohnHa0CERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-09-09Luke DurantC-PRP
D6AC9D097AAF4AF1
PRP proof power = 9
PRP: Verified
Proof certified good
2024-08-17Luke DurantNF-PM1
B1=1058000, B2=765536310
2024-05-06GregNF
no factor from 2^70 to 2^71
2023-07-02La GüiraNF
no factor from 2^76 to 2^77
2023-02-18tscNF
no factor from 2^75 to 2^76
2023-01-02SRBaseNF
no factor from 2^74 to 2^75
2021-07-20SRBaseNF
no factor from 2^73 to 2^74
2020-10-23SRBaseNF
no factor from 2^72 to 2^73
2015-12-30Smok_bmv NF
no factor from 2^71 to 2^72
2015-12-28Josh FamestadNF
no factor from 2^70 to 2^71
2012-12-26VictordeHollanderNF
no factor from 2^69 to 2^70
2012-09-03VictordeHollanderNF
no factor from 2^68 to 2^69
2012-09-03VictordeHollanderNF
no factor from 2^65 to 2^68
2010-11-14Thomas StorkNF
no factor from 2^64 to 2^65
2010-06-02Torchwood InstituteNF
no factor from 2^63 to 2^64