Ten

Ten is a composite number, its proper divisors being 1, 2 and 5.

Ten is the base of the decimal numeral system, by far the most common system of denoting numbers both in spoken and written language. The basis for choice of ten is presumably that ten is the number of fingers (digits) of the human body.

The Roman numeral for ten is X.

The Chinese word numeral for ten is the cross +.

A collection of ten items is called a decade.

A polygon with ten sides is a decagon[?].

• For the year AD 10, see 10.
• For the order of magnitude, see 1 E1[?]
• There are quite a few albums called Ten, including recordings by Pearl Jam and LL Cool J. See Ten (album) for a complete list.