332 319 821 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 =	2670000
B2 =	60075000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2025-12-28	Chrit Atkinson	DE2B179285421889	36920375	1	3

History

Date	User	Type	Result
2025-12-28	Kriesel	CERT	Proof certified good
2025-12-28	Chrit Atkinson	C-PRP	DE2B179285421889 Proof Certified Good Proof Power: 8
2023-11-18	Architects Cubed	NF	no factor TF: 80-81
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2019-04-04	challenge_hori_rei2ro	NF-PM1	B1=2670000, B2=60075000
2016-03-31	dh1	NF	no factor TF: 79-80
2016-03-31	dh1	NF	no factor TF: 78-79
2016-03-31	dh1	NF	no factor TF: 77-78
2016-03-31	dh1	NF	no factor TF: 76-77
2016-03-02	Team_Inspector	NF	no factor TF: 75-76
2015-03-20	Team_Inspector	NF	no factor TF: 74-75
2013-11-15	Team_Inspector	NF	no factor TF: 73-74
2011-08-19	Grant McCracken	NF	no factor TF: 72-73
2011-08-18	Grant McCracken	NF	no factor TF: 71-72
2011-05-25	Grant McCracken	NF	no factor TF: 70-71
2010-10-09	Sunfish	NF	no factor TF: 69-70
2009-09-05	Team_Inspector	NF	no factor TF: 68-69