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

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MnStatusDetails
284958221Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1801163437836275539992167.32016-11-19 16:15:21
History
DateUserTypeResult
2016-11-19Mikhail E. GolosovF
Factor: 180116343783627553999 / TF: 67-68
2016-01-25vwflat4NF
no factor from 2^66 to 2^67
2014-06-15Massimo Cappelli (ik5pwa)NF
no factor from 2^65 to 2^66
2011-09-22RichardNF
no factor from 2^64 to 2^65
2010-04-11QubycNF
no factor from 2^63 to 2^64
2010-04-11QubycNF
no factor from 2^62 to 2^63