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
217532621Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1454972577845662406872167.02015-10-22 14:37:16
History
DateUserTypeResult
2015-10-22ConductorF
Factor: 145497257784566240687 / TF: 66-67
2012-08-17america64NF
no factor from 2^65 to 2^66
2011-05-30carlos56NF
no factor from 2^64 to 2^65