332 953 081 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
261988434154059692767759	24	77.8	2023-11-12 10:19:02

History

Date	User	Type	Result
2025-05-13	DMiddendorp	F	Factor: 261988434154059692767759 / TF: 77-78
2024-06-06	LaurV	NF	no factor TF: 71-72
2023-11-12	Christian R. Mueller-Hirschkorn	F	Factor: 261988434154059692767759 / TF: 77-78*
2022-11-20	bayanne	NF	no factor TF: 76-77
2020-06-22	bayanne	NF	no factor TF: 75-76
2019-03-17	Andrew B	NF	no factor TF: 74-75
2015-10-09	srow7	NF	no factor TF: 73-74
2014-04-24	bayanne	NF	no factor TF: 72-73
2013-03-23	Architects Cubed	NF	no factor TF: 71-72
2013-02-04	LaurV	NF	no factor TF: 70-71
2012-07-23	LaurV	NF	no factor TF: 69-70
2012-04-14	LaurV	NF	no factor TF: 67-69
2010-11-02	Architects Cubed	NF	no factor TF: 66-67