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
143564381Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
769789681544438501992066.12015-03-03 13:52:24
History
DateUserTypeResult
2015-03-03NickF
Factor: 76978968154443850199 / TF: 66-67
2012-12-15Charles A. MorrisNF
no factor from 2^65 to 2^66
2010-12-20sannerud.comNF
no factor from 2^64 to 2^65
2010-06-17sasaki3NF
no factor from 2^63 to 2^64