668 331 623 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: 1 known prime factor

Trial Factored to 2⁶⁸

TF target 2⁸⁴

Factored

Factor	Digits	Bits	Date
217698526702452671	18	57.6	2014-11-14 15:17:54

History

Date	User	Type	Result
2014-11-14	TJAOI	F	Factor: 217698526702452671
2014-06-03	sasaki	NF	no factor TF: 66-67
2013-04-17	ramgeis	NF	no factor TF: 65-66
2011-10-11	lalera	NF	no factor TF: 64-65
2010-06-09	Architects Cubed	NF	no factor TF: 63-64
2010-01-04	ThomRuley	NF	no factor TF: 61-62

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