33 194 509 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 2⁷³

TF target 2⁷¹

P-1

B1 =	420000
B2 =	7875000

Status	Date	User	Residue	Shift	Software
Verified	2008-01-15	C. Cooper / S. Boone	85EE43A13ED62406	14393756	Windows,Prime95,v24 final,NT service,(aka Wc5)
Verified	2014-10-07	Dubslow	85EE43A13ED62406	16107622	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-06-05	LaurV	NF	no factor TF: 70-71
2020-01-25	Architects Cubed	NF-PM1	B1=420000, B2=7875000, E=12
2019-11-22	-anonymous-	NF	no factor TF: 72-73
2019-11-22	-anonymous-	NF	no factor TF: 71-72
2014-10-07	Dubslow	C-LL	85EE43A13ED62406
2014-01-12	Architects Cubed	NF	no factor TF: 70-71
2013-03-03	Never Odd Or Even	NF	no factor TF: 69-70
2012-06-16	bcp19	NF	no factor TF: 68-69
2012-02-11	Ethan O'Connor	NF	no factor TF: 67-68
2008-01-15	curtisc	C-LL	85EE43A13ED62406
2007-12-18	curtisc	NF-PM1	B1=550000
2006-01-15	Team Prime Rib	NF	no factor TF: 1-67
2005-07-17	-anonymous-	NF	no factor TF: 1-62
2005-02-12	1997rj7	NF	no factor TF: 1-61
2000-12-07	Joss	NF	no factor TF: 1-56