10 (number)

This article is about the number ten. For the year, see 10.

10 (Ten /ˈtɛn/ (13px listen)) is the number that is after nine and before eleven. Most people have ten fingers and ten toes.

← 9 10 11 →
← 10 11 12 13 14 15 16 17 18 19 → ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	ten, onety, enty
Ordinal	10th (tenth, onetieth, entieth)
Factorization	2 · 5
Divisors	1, 2, 5, 10
Roman numeral	X
Roman numeral (unicode)	X, x
Greek prefix	deca-/deka-
Latin prefix	deci-
Binary	10102
Ternary	1013
Quaternary	224
Quinary	205
Senary	146
Octal	128
Duodecimal	A12
Hexadecimal	A16
Vigesimal	A20
Base 36	A36
Chinese numeral	十，拾
Hebrew	י (Yod)
Khmer	១០
Korean	십
Tamil	௰
Thai	๑๐
Sanskrit/Marathi/Hindi	१०
Bangla	১০

Ten is the smallest positive whole number with two digits. Ten is an important number because most people write numbers using multiples of ten. This is called the decimal number system.

In Roman numerals, 10 is written as X.

10 (number) Media

• Tetractys.svg

  The Tetractys is a triangular figure consisting of ten points arranged in four rows: one, two, three, and four points in each row. As a mystical symbol devised by Pythagoras it was very important to the Pythagoreans.