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
647027893Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1881914031235986415372167.42016-09-07 14:52:07
History
DateUserTypeResult
2016-09-07NipalF
Factor: 188191403123598641537 / TF: 67-70
2014-06-15sasakiNF
no factor from 2^66 to 2^67
2014-03-19america64NF
no factor from 2^65 to 2^66
2010-11-05Architects CubedNF
no factor from 2^64 to 2^65
2010-08-01Architects CubedNF
no factor from 2^63 to 2^64