332 330 659 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 2⁸¹

TF target 2⁸¹

Factored

Factor	Digits	Bits	Date
1560373948049113955740271	25	80.4	2023-01-30 04:54:03

History

Date	User	Type	Result
2025-06-23	Greg	F	Factor: 1560373948049113955740271 / TF: 80-81
2024-07-16	Grant McCracken	NF	no factor TF: 71-72
2024-04-26	Grant McCracken	NF	no factor TF: 70-71
2024-02-23	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-01-30	Mark Rose	F	Factor: 1560373948049113955740271 / TF: 80-81*
2023-01-30	Mark Rose	NF	no factor TF: 79-80
2022-11-19	Runtime Error	NF	no factor TF: 78-79
2021-05-25	Jon Pace	NF	no factor TF: 77-78
2014-03-09	-anonymous-	NF	no factor TF: 76-77
2014-02-27	-anonymous-	NF-PM1	B1=5305000
2014-02-09	-anonymous-	NF	no factor TF: 75-76
2013-11-30	Team_Inspector	NF	no factor TF: 74-75
2013-11-28	Team_Inspector	NF	no factor TF: 73-74
2013-01-18	LaurV	NF	no factor TF: 72-73
2012-07-06	Grant McCracken	NF	no factor TF: 71-72
2011-04-17	Grant McCracken	NF	no factor TF: 70-71
2010-12-25	Sunfish	NF	no factor TF: 69-70
2009-11-02	Grant McCracken	NF	no factor TF: 68-69