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.
... of 2000, there are 1,526 people, 605 households, and 434 families residing in the town. The population density is 133.3/km² (345.1/mi²). There are 959 ...