332 304 157 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	2018-11-28	SalVi	7A4297A85517B1__	199351086	CUDALucas v2.05.1

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-04-05	Mark Rose	NF-PM1	B1=1564000, B2=354419940
2023-01-13	Mark Rose	NF	no factor TF: 80-81
2023-01-13	Mark Rose	NF	no factor TF: 79-80
2020-08-30	el grocco	NF	no factor TF: 78-79
2020-08-24	Team_Inspector	NF	no factor TF: 77-78
2019-02-23	srow7	NF	no factor TF: 76-77
2018-11-28	SalVi	C-LL	7A4297A85517B1__
2015-08-03	Team_Inspector	NF	no factor TF: 75-76
2011-04-22	vats09	NF	no factor TF: 71-75
2011-04-06	Grant McCracken	NF	no factor TF: 70-71
2010-05-08	Sunfish	NF	no factor TF: 69-70
2009-07-27	Team_Inspector	NF	no factor TF: 68-69