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
107428121Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
66605435031032.62007-09-20 13:42:59
528282168084836811755.62015-01-31 12:22:45
History
DateUserTypeResult
2015-01-31TJAOIF
Factor: 52828216808483681 / TF: 55-56