Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
13005917Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
5186245705760171548.9old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-31LordJuliusB5E8F3B83245E6061384747953
History
DateUserTypeResult
2022-05-31slandrumCERT
PRP Certification
Proof certified good
2022-05-31LordJuliusC-PRP
M13005917/518624570576017 : B5E8F3B83245E606
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-29nordiNF-PM1
B1=300000, B2=229868100
2022-05-26nordiNF-PM1
B1=300000