33 661 997 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 =	350000
B2 =	4200000

Status	Date	User	Residue	Shift	Software
Bad	2004-01-27	Miyahara Shuhei	F8AA4B1E72C3B146	18576166	Windows,Prime95,v23,(aka WZ1)
Verified	2014-12-14	Torchwood Institute	BC4445AB5FF75E8C	24113117	Windows 64-bit,Prime95,v28.5,build 2
Verified	2014-12-23	Dubslow	BC4445AB5FF75E8C	9558458	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2020-04-19	-anonymous-	NF	no factor TF: 73-74
2019-12-07	-anonymous-	NF	no factor TF: 72-73
2018-10-08	Architects Cubed	NF	no factor TF: 71-72
2014-12-23	Dubslow	C-LL	BC4445AB5FF75E8C
2014-12-14	Torchwood Institute	C-LL	BC4445AB5FF75E8C
2013-05-27	kdgehman	NF	no factor TF: 70-71
2013-05-27	kdgehman	NF	no factor TF: 69-70
2012-12-07	Carsten Kossendey	NF	no factor TF: 68-69
2004-01-27	-anonymous-	C-LL	F8AA4B1E72C3B146
2003-12-13	-anonymous-	NF-PM1	B1=350000, B2=4200000
2003-12-13	-anonymous-	NF	no factor TF: 1-68
2003-08-31	markr	NF	no factor TF: 1-64
2003-07-21	markr	NF	no factor TF: 1-63