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
200017837Factored
FactorDigitsBitsDate
4219794382732923625432168.52017-09-17 08:36:04
History
DateUserTypeResult
2017-09-17ConductorF
Factor: 421979438273292362543 / TF: 68-69
2014-02-27c10ck3rNF
no factor from 2^67 to 2^68
2011-11-02David CampeauNF
no factor from 2^66 to 2^67
2011-04-30carlos56NF
no factor from 2^65 to 2^66
2011-01-31CorbyguyNF
no factor from 2^64 to 2^65