33 603 553 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	2004-03-26	sylpheed	5C7040DCAD12E2D8	22354793	Windows,Prime95,v23,(aka WZ1)
Verified	2014-09-21	WR	5C7040DCAD12E2D8	12714179	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-04-19	-anonymous-	NF	no factor TF: 73-74
2019-12-26	-anonymous-	NF	no factor TF: 72-73
2019-12-26	-anonymous-	NF	no factor TF: 71-72
2014-09-21	WR	C-LL	5C7040DCAD12E2D8
2013-05-13	kdgehman	NF	no factor TF: 70-71
2013-05-13	kdgehman	NF	no factor TF: 69-70
2012-11-23	kracker	NF	no factor TF: 68-69
2004-03-26	sylpheed	C-LL	5C7040DCAD12E2D8
2004-02-07	sylpheed	NF-PM1	B1=380000, B2=7600000
2004-02-07	sylpheed	NF	no factor TF: 1-68