33 461 581 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 =	390000
B2 =	10432500

Status	Date	User	Residue	Shift	Software
Verified	2003-11-28	Ars Technica Team Prime Rib	EE670EB326240C1B	30946386	Windows,Prime95,v23,(aka WZ1)
Verified	2014-11-02	Dubslow	EE670EB326240C1B	22654472	Linux 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2020-04-05	-anonymous-	NF	no factor TF: 73-74
2019-11-15	-anonymous-	NF	no factor TF: 71-72
2019-11-15	-anonymous-	NF	no factor TF: 72-73
2014-11-02	Dubslow	C-LL	EE670EB326240C1B
2014-02-10	Patrik Johansson	NF	no factor TF: 70-71
2012-12-20	apsen	NF	no factor TF: 69-70
2012-12-20	apsen	NF	no factor TF: 68-69
2003-11-28	Team Prime Rib	C-LL	EE670EB326240C1B
2003-05-04	Team Prime Rib	NF-PM1	B1=390000, B2=10432500
2003-05-04	Team Prime Rib	NF	no factor TF: 1-68