332 320 873 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	1565000
B2 =	354419940

Status	Date	User	Residue	Shift	Software
Unverified	2017-02-23	Lilith	6E72FAE8C3E7DB__	166174234	CUDALucas v2.05.1

History

Date	User	Type	Result
2024-10-02	Grant McCracken	NF	no factor TF: 71-72
2024-02-15	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-04-21	Mark Rose	NF-PM1	B1=1565000, B2=354419940
2023-01-07	Mark Rose	NF	no factor TF: 80-81
2017-02-23	Lilith	C-LL	6E72FAE8C3E7DB__
2016-04-05	dh1	NF	no factor TF: 79-80
2016-04-05	dh1	NF	no factor TF: 78-79
2016-04-05	dh1	NF	no factor TF: 77-78
2016-04-05	dh1	NF	no factor TF: 76-77
2016-02-18	Team_Inspector	NF	no factor TF: 75-76
2015-03-27	Team_Inspector	NF	no factor TF: 74-75
2013-10-31	Team_Inspector	NF	no factor TF: 73-74
2013-01-17	LaurV	NF	no factor TF: 72-73
2012-05-10	Grant McCracken	NF	no factor TF: 71-72
2011-06-05	Grant McCracken	NF	no factor TF: 70-71
2010-05-25	Grant McCracken	NF	no factor TF: 69-70
2009-09-08	Team_Inspector	NF	no factor TF: 68-69