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
170999047Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
221505681199937771754.32007-11-17 18:16:53
162354204146117158972063.82017-05-17 11:11:06
History
DateUserTypeResult
2017-05-17TJAOIF
Factor: 16235420414611715897 / TF: 63-64