The figure is usually closer to 10 000 years old, although it can range from 6000 - 10 000 in some cases.
I personally do not know how old the Earth is since the Bible isn't specific about the age of the Earth. A few things must be noted, however:
1. God can create things with age as He did with Adam & Eve (Ie: they were never babies). So even if the Earth is old, that does not necessarily mean that Earth has actually existed for the years of age which it contains.
2. No one knows exactly how, and to what degree, the Earth was changed as a result of the damage from the great Flood (Ie: potentially causing artificial signs of age in all sorts of things as a result of damage from the great Flood), and other natural disasters.
3. All the Darwinists 'dating methods' that they allege 'proves' how old things are, have been proven to be erroneous & unreliable; and believing in their accuracy requires faith in unprovable assumptions to begin with.
Bookmarks