332 268 311 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 =	2580000
B2 =	59340000

Status	Date	User	Residue	Shift	Software
Unverified	2019-03-17	penlu	C37AF1DDE77014__	3782762	CUDALucas v2.06beta

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2019-03-17	penlu	C-LL	C37AF1DDE77014__
2019-01-03	penlu	NF-PM1	B1=2580000, B2=59340000, E=2
2019-01-03	penlu	NF	no factor TF: 80-81
2019-01-03	penlu	NF	no factor TF: 79-80
2019-01-03	penlu	NF	no factor TF: 77-78
2019-01-03	penlu	NF	no factor TF: 78-79
2017-01-31	Team_Inspector	NF	no factor TF: 76-77
2015-05-07	Team_Inspector	NF	no factor TF: 75-76
2013-01-11	LaurV	NF	no factor TF: 74-75
2012-05-14	Team_Inspector	NF	no factor TF: 73-74
2011-06-27	Christian Geschwentner	NF	no factor TF: 72-73
2011-06-02	Grant McCracken	NF	no factor TF: 71-72
2011-05-03	Grant McCracken	NF	no factor TF: 70-71
2009-12-18	Team_Inspector	NF	no factor TF: 69-70
2009-07-03	Sunfish	NF	no factor TF: 68-69