Ten

Ten (10) is the natural number following nine and preceding eleven

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. For this reason, any number can be instantly multiplied by ten by adding a zero to the end (855 * 10 = 8,550). 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 (which looks like two V's put together).

The Chinese word numeral for ten is the cross +（Kanji 十）.

A collection of ten items (most often ten years) is called a decade.

A polygon with ten sides is a decagon.

A decapod crustacean has ten limbs.

There are ten cents in a dime, itself one tenth of a dollar. The word was shortened from decime.

People were traditionally tithed one tenth of their produce.

Ten in numeral systems

Base	system
2	binary	1010
3	ternary	101
4	quaternary	22
5	quinary	20
6	senary	14
7	septenary	13
8	octal	12
9	novenary	11
10	decimal	10
over 11 (hexadecimal)		A or X

There are ten Commandments from God to man in Mosaic law.

There are said to be ten "Lost Tribes" of Israel.

It takes ten to make a minyan.

With ten being the base of the decimal system, a scale of 1 to 10 is often used to rank things, as a smaller version of a 1-to-100 scale (as is used in percentages). Something that scores perfectly is "a perfect ten". A person who is extremely attractive and physically flawless is often said to be "a ten", from the idea of ranking that person's appearance and sex appeal on a 1-to-10 scale.

Counting from one to ten before speaking is often done in order to cool one's temper.

Other uses include:

• Five Dynasties and Ten Kingdoms Period

This article is about the number. 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.