332 316 217 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	5055000
B2 =	5055000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=7	2025-11-28	Simon Josefsson	3E3912C1A346A926	70089606	1	3

History

Date	User	Type	Result
2025-11-29	Kriesel	CERT	Proof certified good
2025-11-28	Simon Josefsson	C-PRP	3E3912C1A346A926 Proof Certified Good Proof Power: 7
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-01-23	Mark Rose	NF	no factor TF: 80-81
2023-01-23	Mark Rose	NF	no factor TF: 79-80
2022-11-19	Naegi Makoto	NF	no factor TF: 78-79
2021-12-31	Runtime Error	NF	no factor TF: 77-78
2021-12-31	Runtime Error	NF	no factor TF: 76-77
2018-10-07	AWildJackelope	NF-PM1	B1=5055000
2016-01-05	Team_Inspector	NF	no factor TF: 75-76
2014-04-18	Preben S	NF	no factor TF: 74-75
2013-09-10	Team_Inspector	NF	no factor TF: 73-74
2013-01-16	LaurV	NF	no factor TF: 72-73
2012-05-10	Grant McCracken	NF	no factor TF: 71-72
2011-05-19	Grant McCracken	NF	no factor TF: 70-71
2010-06-20	Sunfish	NF	no factor TF: 69-70
2009-08-24	Team_Inspector	NF	no factor TF: 68-69