Eight

Eight is a composite number, its proper divisors being 1, 2, and 4.

8 is the base of the octal number system, which is mostly used with computers.

A polygon with eight sides is an octagon[?].

Eight is also:

• Eight (八 pinyin ba1) is considered a lucky number in Chinese culture because it sounds like the word "prosper" (發 pinyin fa1).
• In Buddhism, the Eightfold Path is the way to spiritual progress
• October was the eighth month in the Roman calendar, August is currently the eighth month.
• Eight cannot be said by a wizard on the Discworld and is also the number of Bel-Shamharoth.
• Eight was represented in bingo slang, before political correctness as 'One Fat Lady.' Eighty-eight is 'Two Fat Ladies'.
• "Eight maids a milking"
• The number on Walt Disney's Herbie[?] adds up to eight.
• The number of musicians in an octet.