33 691 927 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 2⁷⁴

TF target 2⁷¹

P-1

B1 =	400000
B2 =	9000000

Status	Date	User	Residue	Shift	Software
Verified	2004-11-22	George Washington	3C83C0973E6A09A4	15237041	Windows,Prime95,v23,(aka WZ1)
Verified	2014-12-30	Dubslow	3C83C0973E6A09A4	26007756	Linux 64-bit,Prime95,v28.5,build 2
Verified	2017-01-31	Thomas Hoheneder	3C83C0973E6A09A4	7999892	Windows,Prime95,v27.9,build 1

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-22	-anonymous-	NF	no factor TF: 73-74
2019-12-07	-anonymous-	NF	no factor TF: 72-73
2018-09-30	Architects Cubed	NF	no factor TF: 71-72
2017-01-31	Thomas Hoheneder	C-LL	3C83C0973E6A09A4
2014-12-30	Dubslow	C-LL	3C83C0973E6A09A4
2013-05-30	kdgehman	NF	no factor TF: 69-70
2013-05-30	kdgehman	NF	no factor TF: 70-71
2012-12-08	Carsten Kossendey	NF	no factor TF: 68-69
2004-11-22	-anonymous-	C-LL	3C83C0973E6A09A4
2004-09-16	-anonymous-	NF-PM1	B1=400000, B2=9000000
2003-12-13	Amperio	NF	no factor TF: 1-68
2003-09-29	markr	NF	no factor TF: 1-64
2003-06-09	markr	NF	no factor TF: 1-63