332 628 943 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
155855218662455259286943	24	77.0	2023-01-02 08:08:02

History

Date	User	Type	Result
2025-05-13	DMiddendorp	F	Factor: 155855218662455259286943 / TF: 77-78
2023-01-02	bayanne	F	Factor: 155855218662455259286943 / TF: 77-78*
2022-06-17	bayanne	NF	no factor TF: 76-77
2017-02-13	Adam Buran	NF	no factor TF: 75-76
2016-02-29	srow7	NF	no factor TF: 74-75
2015-07-20	James Heinrich	NF	no factor TF: 73-74
2013-12-11	bayanne	NF	no factor TF: 72-73
2013-03-09	LaurV	NF	no factor TF: 71-72
2013-01-29	LaurV	NF	no factor TF: 70-71
2012-03-28	LaurV	NF	no factor TF: 69-70
2012-03-28	LaurV	NF	no factor TF: 67-69
2010-06-21	Grant McCracken	NF	no factor TF: 66-67