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
16562771Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
459194199964792776770172375.3old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-04-27Peter_JakubDC25F620121FDF7811141252953
History
DateUserTypeResult
2024-04-27Jonathan WebbCERT
PRP Certification
Proof certified good
2024-04-27Peter_JakubC-PRP
M16562771/45919419996479277677017 : DC25F620121FDF78
PRP proof power = 8
PRP: Verified
Proof certified good
2024-03-06nordiNF-PM1
B1=500000, B2=266674590
2024-01-16nordiNF-PM1
B1=500000