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
128047561Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 1068000
B2 = 740782350
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-08-16Luke Durant64C0136C4C2DBE5F013
History
DateUserTypeResult
2024-08-17Luke DurantCERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-08-16Luke DurantC-PRP
64C0136C4C2DBE5F
PRP proof power = 8
PRP: Verified
Proof certified good
2024-08-14Luke DurantNF-PM1
B1=1068000, B2=740782350
2023-01-07TravisJankNF
no factor from 2^76 to 2^77
2023-01-07TravisJankNF
no factor from 2^75 to 2^76
2023-01-01SRBaseNF
no factor from 2^74 to 2^75
2021-07-15SRBaseNF
no factor from 2^73 to 2^74
2020-10-20SRBaseNF
no factor from 2^72 to 2^73
2016-06-08TheGazManNF
no factor from 2^71 to 2^72
2016-05-24Mihai PredaNF
no factor from 2^70 to 2^71
2015-01-21La GüiraNF
no factor from 2^69 to 2^70
2015-01-21La GüiraNF
no factor from 2^68 to 2^69
2015-01-21La GüiraNF
no factor from 2^67 to 2^68
2015-01-12BloodIceNF
no factor from 2^66 to 2^67
2012-09-27soldcakeNF
no factor from 2^65 to 2^66
2010-11-07oodairaNF
no factor from 2^64 to 2^65
2010-06-01jomateixNF
no factor from 2^63 to 2^64