332 216 221 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=7	2023-04-22	Simon Josefsson	8450AD416ECB936E	57344060	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-05-08	James Heinrich	CERT	Proof certified good
2023-04-22	Simon Josefsson	C-PRP	Proof Certified Good Proof Power: 7
2023-02-21	Team_Inspector	NF	no factor TF: 80-81
2016-04-18	dh1	NF	no factor TF: 79-80
2016-04-18	dh1	NF	no factor TF: 78-79
2016-04-18	dh1	NF	no factor TF: 77-78
2015-10-02	Grant McCracken	NF	no factor TF: 76-77
2012-06-20	-anonymous-	NF-PM1	B1=5305000
2011-08-29	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-06-10	Sunfish	NF	no factor TF: 74-75
2010-12-01	Team_Inspector	NF	no factor TF: 73-74
2009-07-12	aschloegl	NF	no factor TF: 72-73
2009-07-11	aschloegl	NF	no factor TF: 71-72
2009-03-25	Team_Inspector	NF	no factor TF: 70-71
2008-11-15	werdwerdus	NF	no factor TF: 69-70
2008-11-15	werdwerdus	NF	no factor TF: 68-69