332 551 721 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 2⁷⁸

TF target 2⁸¹

Factored

Factor	Digits	Bits	Date
228398526664896409775633	24	77.6	2022-06-04 09:34:08

History

Date	User	Type	Result
2022-06-04	Jon Pace	F	Factor: 228398526664896409775633 / TF: 77-78
2022-02-03	bayanne	NF	no factor TF: 76-77
2020-03-20	tsc	NF	no factor TF: 75-76
2016-01-24	LaurV	NF	no factor TF: 74-75
2015-05-14	Grant McCracken	NF	no factor TF: 73-74
2013-08-01	LaurV	NF	no factor TF: 72-73
2013-03-06	LaurV	NF	no factor TF: 71-72
2013-01-19	kracker	NF	no factor TF: 70-71
2012-07-05	LaurV	NF	no factor TF: 69-70
2012-04-11	LaurV	NF	no factor TF: 68-69
2011-12-14	Grant McCracken	NF	no factor TF: 67-68