332 313 227 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 =	1564000
B2 =	354419940

Status	Date	User	Residue	Shift	Software
Unverified	2019-04-25	adamgm	BD03C7801D000A__	0	clLucas v1.04

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-06	Mark Rose	NF-PM1	B1=1564000, B2=354419940
2023-01-21	Mark Rose	NF	no factor TF: 80-81
2023-01-21	Mark Rose	NF	no factor TF: 79-80
2021-08-06	Random GPUs	NF	no factor TF: 77-78
2021-08-06	Random GPUs	NF	no factor TF: 76-77
2021-07-13	LOBES	NF	no factor TF: 78-79
2021-07-13	LOBES	NF	no factor TF: 77-78
2021-07-13	LOBES	NF	no factor TF: 76-77
2019-04-25	adamgm	C-LL	BD03C7801D000A__
2019-03-17	MadPoo 🙂	NF-PM1	B1=100000, B2=500000
2015-09-22	Team_Inspector	NF	no factor TF: 75-76
2015-02-04	Team_Inspector	NF	no factor TF: 74-75
2013-07-25	kracker	NF	no factor TF: 73-74
2013-01-15	LaurV	NF	no factor TF: 72-73
2012-03-12	Grant McCracken	NF	no factor TF: 71-72
2011-06-13	Grant McCracken	NF	no factor TF: 70-71
2010-06-08	Sunfish	NF	no factor TF: 69-70
2009-08-18	Team_Inspector	NF	no factor TF: 68-69