67 694 443 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	615000
B2 =	12300000

Status	Date	User	Residue	Shift	Software
Verified	2015-10-10	Kyle Z Schmidt	8946A405C8EF9EC6	34260984	Windows 64-bit,Prime95,v28.5,build 2
Verified	2023-05-30	Ryan Propper	8946A405C8EF9EC6	46820534	Linux 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2023-05-30	Ryan Propper	C-LL	8946A405C8EF9EC6
2015-10-10	Kyle Z Schmidt	C-LL	8946A405C8EF9EC6
2015-09-18	Jerry Hallett	NF	no factor TF: 74-75
2014-06-12	Nesowa	NF-PM1	B1=615000, B2=12300000, E=6
2014-05-18	TheJudger	NF	no factor TF: 73-74
2014-05-18	TheJudger	NF	no factor TF: 72-73
2014-05-18	TheJudger	NF	no factor TF: 71-72
2012-11-25	Simon Harrison	NF	no factor TF: 70-71
2012-02-28	David Barley	NF	no factor TF: 69-70
2010-04-10	mgdavilaINE	NF	no factor TF: 68-69
2010-03-17	ANONYMOUS	NF	no factor TF: 67-68
2010-03-14	ANONYMOUS	NF	no factor TF: 66-67
2010-01-08	Sturle Sunde	NF	no factor TF: 65-66
2010-01-05	runesk	NF	no factor TF: 64-65
2008-12-24	Wojciech Florek	NF	no factor TF: 63-64