33 536 407 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 =	455000
B2 =	8986250

Status	Date	User	Residue	Shift	Software
Verified	2004-07-13	Mike Bandsmer	DEB5578CCA122E23	208420	Windows,Prime95,v23,(aka WZ1)
Verified	2014-11-20	Dubslow	DEB5578CCA122E23	29843928	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-05-21	James Heinrich	NF	no factor TF: 68-69
2019-11-09	-anonymous-	NF	no factor TF: 72-73
2019-05-06	Architects Cubed	NF-PM1	B1=455000, B2=8986250, E=12
2019-05-01	Architects Cubed	NF	no factor TF: 71-72
2014-11-20	Dubslow	C-LL	DEB5578CCA122E23
2013-05-01	Bill Staffen	NF	no factor TF: 70-71
2013-05-01	Bill Staffen	NF	no factor TF: 69-70
2012-12-23	Carsten Kossendey	NF	no factor TF: 68-69
2004-07-13	-anonymous-	C-LL	DEB5578CCA122E23
2004-04-09	-anonymous-	NF	no factor TF: 1-68
2003-10-31	-anonymous-	NF-PM1	B1=995000