33 601 553 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 =	290000
B2 =	5220000

Status	Date	User	Residue	Shift	Software
Verified		Progress Mtshali	D3C9312115DA3683	2277213	Windows,Prime95,v23,NT service,(aka WZ5)
Verified	2014-12-10	jg5	D3C9312115DA3683	3109566	Windows 64-bit,Prime95,v28.5,build 2

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
2018-09-05	Architects Cubed	NF-PM1	B1=290000, B2=5220000, E=6
2018-08-20	Architects Cubed	NF	no factor TF: 71-72
2016-03-27	Mark Rose	NF	no factor TF: 67-68
2016-03-27	Mark Rose	NF	no factor TF: 66-67
2016-03-27	Mark Rose	NF	no factor TF: 64-66
2014-12-10	jg5	C-LL	D3C9312115DA3683
2013-05-01	Axelsson	NF	no factor TF: 70-71
2013-05-01	Axelsson	NF	no factor TF: 69-70
2012-12-25	Carsten Kossendey	NF	no factor TF: 68-69
2003-06-06	markr	NF	no factor TF: 1-64