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
206896979Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1545451978036904977612167.12016-09-03 00:23:38
History
DateUserTypeResult
2016-09-03baseyF
Factor: 154545197803690497761 / TF: 67-68
2015-10-18Jakub "Senecjusz" SzafranNF
no factor from 2^66 to 2^67
2013-08-02Lukin DmitryNF
no factor from 2^65 to 2^66
2011-05-10RichardNF
no factor from 2^64 to 2^65