332 228 821 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 =	5305000
B2 =	5305000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2022-09-21	Chelle	D17939A0EBD51D1B	315520712	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-16	Mark Rose	NF	no factor TF: 80-81
2023-03-16	Mark Rose	NF	no factor TF: 79-80
2022-10-04	Jan S.	CERT	Proof certified good
2022-09-21	Chelle	C-PRP	Proof Certified Good Proof Power: 8
2022-02-11	LOBES	NF	no factor TF: 78-79
2022-02-11	LOBES	NF	no factor TF: 77-78
2014-04-28	Team_Inspector	NF	no factor TF: 76-77
2014-02-06	Joshua	NF-PM1	B1=5305000
2013-02-19	Team_Inspector	NF	no factor TF: 75-76
2011-04-14	Christian Geschwentner	NF	no factor TF: 74-75
2010-12-21	Team_Inspector	NF	no factor TF: 73-74
2010-09-14	Team_Inspector	NF	no factor TF: 72-73
2010-09-11	Team_Inspector	NF	no factor TF: 71-72
2010-04-27	Grant McCracken	NF	no factor TF: 70-71
2009-05-04	Team_Inspector	NF	no factor TF: 69-70
2009-01-03	Team_Inspector	NF	no factor TF: 68-69