332 301 293 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 =	4305000
B2 =	4305000

Status	Date	User	Residue	Shift	Software
Unverified	2018-05-26	karolszk	CBBED1264CE42B__	262952842	Linux 64-bit,Prime95,v28.9,build 2

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-25	Mark Rose	NF	no factor TF: 80-81
2023-02-25	Mark Rose	NF	no factor TF: 79-80
2023-01-23	Mark Rose	NF	no factor TF: 78-79
2018-05-26	karolszk	C-LL	CBBED1264CE42B__
2017-08-02	karolszk	NF-PM1	B1=4305000
2015-12-14	John Burroughs	NF	no factor TF: 77-78
2015-12-14	John Burroughs	NF	no factor TF: 76-77
2015-09-10	Alex_soldier	NF	no factor TF: 75-76
2014-04-17	Preben S	NF	no factor TF: 74-75
2013-06-29	Team_Inspector	NF	no factor TF: 73-74
2013-01-14	LaurV	NF	no factor TF: 72-73
2011-09-21	Grant McCracken	NF	no factor TF: 71-72
2011-06-25	Grant McCracken	NF	no factor TF: 70-71
2010-10-01	Sunfish	NF	no factor TF: 69-70
2009-07-11	Team_Inspector	NF	no factor TF: 68-69