33 537 509 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 =	200000
B2 =	4250000

Status	Date	User	Residue	Shift	Software
Verified	2003-08-31	Lawrence Murray	061E769382F2B82A	32711199	Windows,Prime95,v23,(aka WZ1)
Verified	2014-11-20	Dubslow	061E769382F2B82A	28111084	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2019-11-09	-anonymous-	NF	no factor TF: 72-73
2019-09-09	Architects Cubed	NF	no factor TF: 71-72
2016-02-23	Mark Rose	NF	no factor TF: 62-64
2014-11-20	Dubslow	C-LL	061E769382F2B82A
2014-02-04	amphoria	NF	no factor TF: 70-71
2013-01-11	bcp19	NF	no factor TF: 69-70
2012-11-27	kracker	NF	no factor TF: 68-69
2010-07-04	GrunwalderGIMP	NF	no factor TF: 67-68
2009-11-28	Carsten Kossendey	NF-PM1	B1=200000, B2=4250000, E=6
2008-11-24	Carsten Kossendey	NF	no factor TF: 66-67
2008-11-24	Carsten Kossendey	NF	no factor TF: 65-66
2008-11-24	Carsten Kossendey	NF	no factor TF: 64-65
2005-01-10	Team Prime Rib	NF	no factor TF: 1-62
2004-12-13	Team Prime Rib	NF	no factor TF: 1-61
2003-08-31	lmurray	C-LL	061E769382F2B82A