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
219070763Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1568557444831620485932167.12016-09-12 22:36:30
History
DateUserTypeResult
2016-09-12demfloroF
Factor: 156855744483162048593 / TF: 67-68
2015-10-14rob147147NF
no factor from 2^66 to 2^67
2012-07-12america64NF
no factor from 2^65 to 2^66
2011-06-02Lukin DmitryNF
no factor from 2^64 to 2^65