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
558001361Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1578147575912021604012167.12016-11-09 16:40:02
History
DateUserTypeResult
2016-11-09ConductorF
Factor: 157814757591202160401 / TF: 67-68
2015-11-29sasakiNF
no factor from 2^66 to 2^67
2014-09-25sasakiNF
no factor from 2^65 to 2^66
2012-01-06albin_pouillesNF
no factor from 2^64 to 2^65