Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
189198439Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15131201697228582089032270.42015-08-25 07:55:31
History
DateUserTypeResult
2015-08-25demfloroF
Factor: 1513120169722858208903 / TF: 70-71
2015-08-25demfloroNF
no factor from 2^69 to 2^70
2015-08-25demfloroNF
no factor from 2^68 to 2^69
2015-08-25demfloroNF
no factor from 2^66 to 2^68
2013-06-06Mike_SNF
no factor from 2^65 to 2^66
2011-04-09AntonNF
no factor from 2^64 to 2^65
2010-08-02Sid & AndyNF
no factor from 2^63 to 2^64