33 604 139 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 =	455000
B2 =	8986250

Status	Date	User	Residue	Shift	Software
Verified	2004-03-26	Anatole Kaushanski	B74FA65052705206	27609652	Windows,Prime95,v23,(aka WZ1)
Verified	2014-09-15	richs	B74FA65052705206	6765981	Windows,Prime95,v26,(aka We1)

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
2018-09-15	Architects Cubed	NF-PM1	B1=455000, B2=8986250, E=12
2018-08-20	Architects Cubed	NF	no factor TF: 71-72
2016-02-23	Mark Rose	NF	no factor TF: 1-64
2014-09-15	richs	C-LL	B74FA65052705206
2014-04-09	axn	NF	no factor TF: 70-71
2013-01-10	marssystems	NF	no factor TF: 69-70
2012-12-31	Carsten Kossendey	NF	no factor TF: 68-69
2010-07-16	GrunwalderGIMP	NF	no factor TF: 67-68
2009-02-09	-anonymous-	NF-PM1	B1=575000
2008-11-26	Carsten Kossendey	NF	no factor TF: 66-67
2008-11-26	Carsten Kossendey	NF	no factor TF: 65-66
2008-11-26	Carsten Kossendey	NF	no factor TF: 64-65
2004-03-26	-anonymous-	C-LL	B74FA65052705206