332 248 207 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 =	3539000
B2 =	929056170

Status	Date	User	Residue	Shift	Software
Unverified	2017-10-10	Eric Clements	FB19EDAE1136F0__	16040	CUDALucas v2.05.1

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-19	Mark Rose	NF	no factor TF: 80-81
2023-02-19	Mark Rose	NF	no factor TF: 79-80
2022-10-23	Runtime Error	NF-PM1	B1=3539000, B2=929056170
2020-08-09	el grocco	NF	no factor TF: 78-79
2020-05-25	Team_Inspector	NF	no factor TF: 77-78
2017-10-10	Eric Clements	C-LL	FB19EDAE1136F0__
2015-10-20	srow7	NF	no factor TF: 76-77
2013-02-24	Team_Inspector	NF	no factor TF: 75-76
2013-01-09	LaurV	NF	no factor TF: 74-75
2011-06-01	Team_Inspector	NF	no factor TF: 73-74
2011-05-28	Team_Inspector	NF	no factor TF: 72-73
2011-04-26	Christian Geschwentner	NF	no factor TF: 71-72
2010-10-18	Team_Inspector	NF	no factor TF: 70-71
2009-04-04	Team_Inspector	NF	no factor TF: 69-70
2009-02-21	Team_Inspector	NF	no factor TF: 68-69