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
489004897Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4300421970744490190872168.52016-12-17 18:28:14
History
DateUserTypeResult
2016-12-17ConductorF
Factor: 430042197074449019087 / TF: 68-69
2016-07-06sasakiNF
no factor from 2^67 to 2^68
2016-03-30sasakiNF
no factor from 2^66 to 2^67
2014-10-22barrakoudaNF
no factor from 2^65 to 2^66