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
800143571Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
42920556680013355033192271.92019-11-08 21:44:07
History
DateUserTypeResult
2019-11-08ConductorF
Factor: 4292055668001335503319 / TF: 71-72
2019-11-08ConductorNF
no factor from 2^70 to 2^71
2016-08-11ramgeisNF
no factor from 2^68 to 2^70
2015-05-16sasakiNF
no factor from 2^67 to 2^68
2014-11-13sasakiNF
no factor from 2^66 to 2^67
2013-10-28america64NF
no factor from 2^65 to 2^66
2010-09-27Architects CubedNF
no factor from 2^64 to 2^65
2010-04-04Architects CubedNF
no factor from 2^63 to 2^64