33 603 461 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 =	290000
B2 =	5220000

Status	Date	User	Residue	Shift	Software
Verified	2004-03-16	Michael Shafer	BA59AA50F0C6E6AF	22509948	Windows,Prime95,v23,(aka WZ1)
Verified	2014-09-08	kutens	BA59AA50F0C6E6AF	1775644	Linux 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2020-04-19	-anonymous-	NF	no factor TF: 73-74
2019-12-07	-anonymous-	NF	no factor TF: 72-73
2018-09-05	Architects Cubed	NF-PM1	B1=290000, B2=5220000, E=6
2018-08-20	Architects Cubed	NF	no factor TF: 71-72
2014-09-08	kutens	C-LL	BA59AA50F0C6E6AF
2013-05-13	kdgehman	NF	no factor TF: 70-71
2013-05-13	kdgehman	NF	no factor TF: 69-70
2012-11-22	kracker	NF	no factor TF: 68-69
2004-03-16	Pi_Rho	C-LL	BA59AA50F0C6E6AF
2004-02-07	Pi_Rho	NF-PM1	B1=495000
2004-02-07	Pi_Rho	NF	no factor TF: 1-68