332 305 691 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 =	1564000
B2 =	354419940

Status	Date	User	Residue	Shift	Software
Unverified	2019-01-02	SalVi	2983EFECBFB39D__	138618135	CUDALucas v2.05.1

History

Date	User	Type	Result
2024-06-05	LaurV	NF	no factor TF: 73-74
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-04-18	Mark Rose	NF-PM1	B1=1564000, B2=354419940
2023-01-18	Mark Rose	NF	no factor TF: 80-81
2023-01-18	Mark Rose	NF	no factor TF: 79-80
2020-09-02	Runtime Error	NF	no factor TF: 78-79
2020-09-01	Team_Inspector	NF	no factor TF: 77-78
2019-02-25	srow7	NF	no factor TF: 76-77
2019-01-02	SalVi	C-LL	2983EFECBFB39D__
2013-09-14	Grant McCracken	NF	no factor TF: 75-76
2013-08-19	Grant McCracken	NF	no factor TF: 74-75
2013-03-01	Architects Cubed	NF	no factor TF: 73-74
2013-01-14	LaurV	NF	no factor TF: 72-73
2011-09-12	Grant McCracken	NF	no factor TF: 71-72
2011-07-24	Grant McCracken	NF	no factor TF: 70-71
2010-05-14	Sunfish	NF	no factor TF: 69-70
2009-08-01	Team_Inspector	NF	no factor TF: 68-69