33 824 171 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 =	380000
B2 =	7600000

Status	Date	User	Residue	Shift	Software
Verified	2005-02-02	Axel Hoff	8F3D55D3403B6814	14999987	Windows,Prime95,v23,(aka WZ1)
Verified	2015-02-02	Dubslow	8F3D55D3403B6814	25742051	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-04-01	-anonymous-	NF	no factor TF: 73-74
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2015-02-02	Dubslow	C-LL	8F3D55D3403B6814
2013-02-11	apsen	NF	no factor TF: 70-71
2013-01-20	David Campeau	NF	no factor TF: 69-70
2012-11-29	kracker	NF	no factor TF: 68-69
2005-02-02	-anonymous-	C-LL	8F3D55D3403B6814
2004-10-03	-anonymous-	NF	no factor TF: 1-68
2004-10-03	-anonymous-	NF-PM1	B1=380000, B2=7600000