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

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MnStatusDetails
193987571Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
43771469654707330214872271.92015-09-09 22:55:22
History
DateUserTypeResult
2015-09-09demfloroF
Factor: 4377146965470733021487 / TF: 71-72
2015-09-09demfloroNF
no factor from 2^70 to 2^71
2015-09-09demfloroNF
no factor from 2^69 to 2^70
2015-09-09demfloroNF
no factor from 2^68 to 2^69
2015-09-09demfloroNF
no factor from 2^66 to 2^68
2013-06-18Mr-PlonkNF
no factor from 2^65 to 2^66
2011-04-18megavinkNF
no factor from 2^64 to 2^65
2010-08-08RichardNF
no factor from 2^63 to 2^64