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

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MnStatusDetails
195555251Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
7723722295827797525692169.42015-09-13 03:55:19
History
DateUserTypeResult
2015-09-13demfloroF
Factor: 772372229582779752569 / TF: 69-70
2015-09-13demfloroNF
no factor from 2^68 to 2^69
2015-09-13demfloroNF
no factor from 2^66 to 2^68
2013-06-24t2NF
no factor from 2^65 to 2^66
2011-04-21Gordon SpenceNF
no factor from 2^64 to 2^65
2010-08-07garoNF
no factor from 2^63 to 2^64