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
100591247Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
217712532604216209132064.22010-08-10 16:35:15
History
DateUserTypeResult
2010-08-10Torchwood InstituteF
Factor: 21771253260421620913
2010-02-221997rj7NF
no factor from 2^63 to 2^64