332 258 317 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	2018-09-21	endless_mike	1539523F3177B7__	197363996	Linux 64-bit,Prime95,v29.4,build 8

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-22	Mark Rose	NF	no factor TF: 80-81
2023-02-22	Mark Rose	NF	no factor TF: 79-80
2023-02-22	Mark Rose	NF	no factor TF: 78-79
2021-05-14	Random GPUs	NF	no factor TF: 77-78
2018-09-21	endless_mike	C-LL	1539523F3177B7__
2018-05-11	endless_mike	NF-PM1	B1=4660000
2014-05-14	Team_Inspector	NF	no factor TF: 76-77
2013-04-10	ANONYMOUS	NF	no factor TF: 75-76
2013-01-09	LaurV	NF	no factor TF: 74-75
2011-04-14	Team_Inspector	NF	no factor TF: 73-74
2011-04-02	Team_Inspector	NF	no factor TF: 72-73
2011-03-30	Team_Inspector	NF	no factor TF: 71-72
2011-02-21	Christian Geschwentner	NF	no factor TF: 70-71
2009-09-17	Team_Inspector	NF	no factor TF: 69-70
2009-05-20	Team_Inspector	NF	no factor TF: 68-69