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

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MnStatusDetails
207481213Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2139713403847481721112167.52015-10-08 20:07:46
History
DateUserTypeResult
2024-03-17James HeinrichF
Factor: 213971340384748172111 / TF: 1-70
2015-10-08ConductorF
Factor: 213971340384748172111 / TF: 67-68
2015-09-26rob147147NF
no factor from 2^66 to 2^67
2013-08-06RichardNF
no factor from 2^65 to 2^66
2011-05-11Charles A. MorrisNF
no factor from 2^64 to 2^65