332 289 457 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 =	4660000
B2 =	4660000

Status	Date	User	Residue	Shift	Software
Unverified	2019-03-27	Lilith	21C3A8B32FD1FA__	8895	CUDALucas v2.05.1

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
2023-02-24	Mark Rose	NF	no factor TF: 80-81
2023-02-24	Mark Rose	NF	no factor TF: 79-80
2023-02-24	Mark Rose	NF	no factor TF: 78-79
2021-06-19	Random GPUs	NF	no factor TF: 77-78
2019-03-27	Lilith	C-LL	21C3A8B32FD1FA__
2017-12-29	kingarthur456	NF-PM1	B1=4660000
2016-12-31	Grant McCracken	NF	no factor TF: 76-77
2014-12-30	NR	NF	no factor TF: 75-76
2013-09-20	ktony	NF	no factor TF: 74-75
2013-05-15	kracker	NF	no factor TF: 73-74
2012-12-21	kracker	NF	no factor TF: 72-73
2011-08-07	Carsten Kossendey	NF	no factor TF: 71-72
2011-07-03	Grant McCracken	NF	no factor TF: 70-71
2010-06-15	Sunfish	NF	no factor TF: 69-70
2009-08-20	Team_Inspector	NF	no factor TF: 68-69