Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
503142883Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
39839547730049650016712271.82019-12-07 05:12:45
History
DateUserTypeResult
2019-12-07Smok_bmv F
Factor: 3983954773004965001671 / TF: 71-72
2019-02-27Niels_Mache_NextcloudNF
no factor from 2^70 to 2^71
2018-07-25sasakiNF
no factor from 2^69 to 2^70
2017-12-03sasakiNF
no factor from 2^68 to 2^69
2016-05-02sasakiNF
no factor from 2^67 to 2^68
2014-11-28sasakiNF
no factor from 2^66 to 2^67
2014-09-13sasakiNF
no factor from 2^65 to 2^66