332 197 861 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 =	3330000
B2 =	97730000

Status	Date	User	Residue	Shift	Software
Unverified	2021-04-05	danc2	550787251FF37F__	223252566	CUDALucas v2.06

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-08	Mark Rose	NF	no factor TF: 80-81
2021-04-05	danc2	C-LL	550787251FF37F__
2021-01-10	Random GPUs	NF	no factor TF: 79-80
2016-05-27	-anonymous-	NF	no factor TF: 78-79
2015-04-13	Team_Inspector	NF	no factor TF: 77-78
2011-08-09	MRH	NF	no factor TF: 76-77
2011-07-06	MRH	NF-PM1	B1=3330000, B2=97730000
2010-07-25	MRH	NF	no factor TF: 75-76
2009-10-18	Sunfish	NF	no factor TF: 74-75
2009-10-12	Sunfish	NF	no factor TF: 73-74
2009-10-09	Sunfish	NF	no factor TF: 72-73
2009-10-08	Sunfish	NF	no factor TF: 71-72
2009-01-09	Team_Inspector	NF	no factor TF: 70-71
2008-10-25	Team_Inspector	NF	no factor TF: 69-70
2008-10-25	Team_Inspector	NF	no factor TF: 68-69