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
217814173Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
2577748519470195232972167.82016-09-09 22:43:36
History
DateUserTypeResult
2016-09-09volovikF
Factor: 257774851947019523297 / TF: 67-68
2015-10-23AndreNF
no factor from 2^66 to 2^67
2012-07-30america64NF
no factor from 2^65 to 2^66
2011-06-01impsNF
no factor from 2^64 to 2^65