332 356 571 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
1352787127979749179135377	25	80.2	2023-02-16 02:50:03

Status	Proof	Date	User	Residue	Shift	Type	Base
Factored	PRP without proof (not generated)	2020-02-22	Xebecer	68A57E9CC03128C0	0	4	3

History

Date	User	Type	Result
2025-06-23	Greg	F	Factor: 1352787127979749179135377 / TF: 80-81
2024-07-17	Grant McCracken	NF	no factor TF: 71-72
2024-04-30	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-16	Mark Rose	F	Factor: 1352787127979749179135377 / TF: 80-81*
2023-02-16	Mark Rose	NF	no factor TF: 79-80
2022-12-22	Naegi Makoto	NF	no factor TF: 78-79
2021-06-06	Jon Pace	NF	no factor TF: 77-78
2020-02-22	Xebecer	C-PRP	68A57E9CC03128C0
2019-11-28	Siarhei P. 😜	NF	no factor TF: 76-77
2016-08-30	Team_Inspector	NF	no factor TF: 75-76
2015-12-21	Team_Inspector	NF	no factor TF: 74-75
2015-01-14	Team_Inspector	NF	no factor TF: 73-74
2013-01-21	LaurV	NF	no factor TF: 72-73
2012-12-06	Grant McCracken	NF	no factor TF: 71-72
2011-02-24	Grant McCracken	NF	no factor TF: 70-71
2010-11-03	Grant McCracken	NF	no factor TF: 69-70
2010-04-30	Sunfish	NF	no factor TF: 68-69