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
212907719Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18666899243168375167512270.72020-01-13 14:31:55
History
DateUserTypeResult
2025-05-01James HeinrichF
Factor: 1866689924316837516751 / TF: 70-71
2020-01-13_p95holder_F
Factor: 1866689924316837516751 / TF: 70-71
2017-12-06YxinityNF
no factor from 2^69 to 2^70
2017-12-06YxinityNF
no factor from 2^68 to 2^69
2012-08-07america64NF
no factor from 2^67 to 2^68
2012-08-06america64NF
no factor from 2^66 to 2^67
2012-02-09laleraNF
no factor from 2^65 to 2^66
2011-05-22Charles A. MorrisNF
no factor from 2^64 to 2^65