Eighteen is a composite number, its proper divisors being 1, 2, 3, 6 and 9.
18 is the age limit for being allowed a driver's license in many parts of the world.
... units at an average density of 43.6/km² (112.9/mi²). The racial makeup of the town is 98.12% White, 0.00% African American, 0.06% Native American, 0.58% ...