332 334 253 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 2⁷⁹

TF target 2⁸¹

Factored

Factor	Digits	Bits	Date
398712453988665514486279	24	78.4	2021-12-27 18:03:43

History

Date	User	Type	Result
2025-04-27	DMiddendorp	F	Factor: 398712453988665514486279 / TF: 78-79
2024-07-15	Grant McCracken	NF	no factor TF: 71-72
2024-04-26	Grant McCracken	NF	no factor TF: 70-71
2024-02-24	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2021-12-27	Runtime Error	F	Factor: 398712453988665514486279 / TF: 78-79*
2021-12-27	Runtime Error	NF	no factor TF: 77-78
2021-09-30	Luminescence	NF	no factor TF: 76-77
2019-11-29	MadPoo 🙂	NF-PM1	B1=100000, B2=1000000
2019-04-30	MadPoo 🙂	NF-PM1	B1=100000
2016-04-27	srow7	NF	no factor TF: 75-76
2014-04-23	Preben S	NF	no factor TF: 74-75
2013-12-05	Team_Inspector	NF	no factor TF: 73-74
2013-01-19	LaurV	NF	no factor TF: 72-73
2012-09-08	Grant McCracken	NF	no factor TF: 71-72
2011-03-29	Grant McCracken	NF	no factor TF: 70-71
2011-01-08	Sunfish	NF	no factor TF: 69-70
2010-01-18	Grant McCracken	NF	no factor TF: 68-69