33 130 043 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	2007-04-07	Walter D. Graham,III	CF2BF170A553927F	227416	Windows,Prime95,v24 final,(aka Wc1)
Verified	2014-09-27	Dubslow	CF2BF170A553927F	25998710	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-01-23	Architects Cubed	NF-PM1	B1=420000, B2=7875000, E=12
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2014-09-27	Dubslow	C-LL	CF2BF170A553927F
2013-01-22	bcp19	NF	no factor TF: 70-71
2013-01-20	David Campeau	NF	no factor TF: 69-70
2012-09-03	kracker	NF	no factor TF: 68-69
2007-04-07	-anonymous-	C-LL	CF2BF170A553927F
2007-03-04	-anonymous-	NF-PM1	B1=500000
2006-02-01	tsc	NF	no factor TF: 1-68
2005-01-10	1997rj7	NF	no factor TF: 1-61
2000-12-07	Joss	NF	no factor TF: 1-56