332 197 793 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	1665000
B2 =	531008940

Status	Date	User	Residue	Shift	Software
Verified	2015-09-20	aurashift	3C6474A7A972354D	156098221	Linux 64-bit,Prime95,v28.5,build 2
Bad	2023-06-15	Kriesel	ED96B12793BEBB11	0	gpuowl,v6.11-380-g79ea0cc
Verified	2023-11-23	Kriesel	3C6474A7A972354D	19930563	Windows 64-bit,Prime95,v30.18,build 2

History

Date	User	Type	Result
2023-11-23	Kriesel	C-LL	3C6474A7A972354D
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-06-15	Kriesel	C-LL	ED96B12793BEBB11
2023-04-27	Kriesel	NF-PM1	B1=1665000, B2=531008940
2023-02-08	Mark Rose	NF	no factor TF: 80-81
2017-04-04	Random GPUs	NF	no factor TF: 79-80
2016-05-26	-anonymous-	NF	no factor TF: 78-79
2015-09-20	aurashift	C-LL	3C6474A7A972354D
2015-03-24	Team_Inspector	NF	no factor TF: 77-78
2010-05-02	LaurV	NF	no factor TF: 76-77
2010-04-11	LaurV	NF	no factor TF: 75-76
2010-04-01	LaurV	NF-PM1	B1=5670000
2009-07-08	belge	NF	no factor TF: 74-75
2009-06-30	belge	NF	no factor TF: 73-74
2009-06-27	belge	NF	no factor TF: 72-73
2009-06-25	belge	NF	no factor TF: 71-72
2009-01-24	Team_Inspector	NF	no factor TF: 70-71
2008-10-10	Team_Inspector	NF	no factor TF: 69-70
2008-10-10	Team_Inspector	NF	no factor TF: 68-69