332 347 261 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=9	2025-07-24	COMPUTRON9001	C9CC3F3C57370D4B	0	1	3

History

Date	User	Type	Result
2025-07-29	Kriesel	CERT	Proof certified good
2025-07-24	COMPUTRON9001	C-PRP	C9CC3F3C57370D4B Proof Certified Good Proof Power: 9
2024-03-05	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-07-02	Team_Inspector	NF	no factor TF: 80-81
2023-06-01	Architects Cubed	NF	no factor TF: 79-80
2023-04-29	Architects Cubed	NF	no factor TF: 78-79
2022-04-04	Architects Cubed	NF	no factor TF: 77-78
2022-02-21	Team_Inspector	NF	no factor TF: 76-77
2019-02-02	ANONYMOUS	NF-PM1	B1=5055000
2016-05-03	srow7	NF	no factor TF: 75-76
2014-05-01	Preben S	NF	no factor TF: 74-75
2014-03-23	Phantomas	NF	no factor TF: 73-74
2013-01-20	LaurV	NF	no factor TF: 72-73
2012-10-25	Grant McCracken	NF	no factor TF: 71-72
2011-03-04	Grant McCracken	NF	no factor TF: 70-71
2010-12-30	Sunfish	NF	no factor TF: 69-70
2010-04-15	Sunfish	NF	no factor TF: 68-69