332 356 261 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	2019-08-13	yphysics	C0659BFCE5627F__	215627178	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2024-04-30	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-27	Mark Rose	NF	no factor TF: 80-81
2019-08-13	yphysics	C-LL	C0659BFCE5627F__
2017-07-01	Random GPUs	NF	no factor TF: 79-80
2017-07-01	Random GPUs	NF	no factor TF: 78-79
2017-07-01	Random GPUs	NF	no factor TF: 77-78
2017-07-01	Random GPUs	NF	no factor TF: 76-77
2015-02-01	aurashift	NF-PM1	B1=5305000
2015-01-09	Jacques MOLNE	NF	no factor TF: 75-76
2015-01-08	Jacques MOLNE	NF	no factor TF: 74-75
2015-01-01	Team_Inspector	NF	no factor TF: 73-74
2013-01-21	LaurV	NF	no factor TF: 72-73
2012-12-09	Grant McCracken	NF	no factor TF: 71-72
2011-02-18	Grant McCracken	NF	no factor TF: 70-71
2010-10-24	Grant McCracken	NF	no factor TF: 69-70
2010-04-30	Sunfish	NF	no factor TF: 68-69