332 276 621 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 =	5305000
B2 =	5305000

Status	Date	User	Residue	Shift	Software
Unverified	2019-03-05	yphysics	48B38C253A44A8__	198030896	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2024-05-12	James Heinrich	NF	no factor TF: 71-72
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-23	Mark Rose	NF	no factor TF: 80-81
2023-02-23	Mark Rose	NF	no factor TF: 79-80
2023-02-23	Mark Rose	NF	no factor TF: 78-79
2021-06-08	Random GPUs	NF	no factor TF: 77-78
2019-03-05	yphysics	C-LL	48B38C253A44A8__
2017-02-25	Team_Inspector	NF	no factor TF: 76-77
2016-02-13	wtfismyip	NF-PM1	B1=5305000
2015-05-22	Team_Inspector	NF	no factor TF: 75-76
2014-07-15	Team_Inspector	NF	no factor TF: 74-75
2012-11-22	Team_Inspector	NF	no factor TF: 73-74
2012-02-03	Team_Inspector	NF	no factor TF: 72-73
2011-08-05	Carsten Kossendey	NF	no factor TF: 71-72
2011-07-08	Grant McCracken	NF	no factor TF: 70-71
2010-05-15	Grant McCracken	NF	no factor TF: 69-70
2009-07-12	Sunfish	NF	no factor TF: 68-69