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
101028251Composite: proven not-prime with PRP test
TF
No factors below 276
TF target 276
P-1
B1 = 815000
B2 = 14262500
PRP
StatusDateUserResidueShiftTypeBase
Verified2020-11-18ky0urakuDA1F9D5C3DE755151242635313
History
DateUserTypeResult
2020-11-19Ben DeloCERT
PRP Certification
CERT proof power = 9
Proof certified good
2020-11-18ky0urakuC-PRP
DA1F9D5C3DE75515
PRP proof power = 9
PRP: Verified
Proof certified good
2020-11-11ky0urakuNF-PM1
B1=815000, B2=14262500
2020-02-25KrieselNF
no factor from 2^75 to 2^76
2020-02-25KrieselNF
no factor from 2^74 to 2^75
2020-02-25KrieselNF
no factor from 2^73 to 2^74
2020-02-25KrieselNF
no factor from 2^72 to 2^73
2017-09-19el groccoNF
no factor from 2^71 to 2^72
2014-04-01hkskypNF
no factor from 2^70 to 2^71
2014-04-01JFCNF
no factor from 2^69 to 2^70
2014-03-27Andreas_TruetschNF
no factor from 2^68 to 2^69
2013-08-23RobishNF
no factor from 2^67 to 2^68
2011-03-13Michael CNF
no factor from 2^66 to 2^67
2011-03-13Michael CNF
no factor from 2^65 to 2^66
2010-08-15abcNF
no factor from 2^64 to 2^65
2010-02-061997rj7NF
no factor from 2^63 to 2^64