128 481 229 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 2⁷²

TF target 2⁷⁷

Factored

Factor	Digits	Bits	Date
49186227412974770257	20	65.4	2018-03-31 11:40:02

History

Date	User	Type	Result
2018-03-31	TJAOI	F	Factor: 49186227412974770257
2015-11-19	SourceBinary.com	NF	no factor TF: 71-72
2015-11-16	SourceBinary.com	NF	no factor TF: 70-71
2015-11-13	La Güira	NF	no factor TF: 69-70
2015-11-13	La Güira	NF	no factor TF: 68-69
2015-11-13	La Güira	NF	no factor TF: 67-68
2015-01-14	el grocco	NF	no factor TF: 66-67
2012-09-30	subgenius	NF	no factor TF: 65-66
2010-11-07	Serge Batalov	NF	no factor TF: 64-65
2010-05-29	Architects Cubed	NF	no factor TF: 63-64