1 (number)

: This article discusses the number one. For the year AD 1, see 1. For other uses of 1, see 1 (disambiguation)

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1 (one) is a number, numeral, and glyph. It is the natural number following 0 and preceding 2.

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It represents a single entity. One is sometimes referred to as unity, and unit is sometimes used as an adjective in this sense. (For example, a line segment of "unit length" is a line segment of length 1.)

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Some Ancient Greeks did not consider one as a number: they considered it to be the unit, two being the first proper number as it represented a multiplicity.

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1: :For other uses, see One (disambiguation). For the number 1, see 1 (number)....

1 (disambiguation): 1 and one are used in many contexts:...

Numeral: The term numeral can refer to:...

1 (number) related Images and Photos (experimental)

Number 8 1949	Number 36	Number 23	Number 25
Number 23 (BD)	Number 18 1950	ABBA: Number Ones CD	ABBA: Number Ones CD
Number 23, The (DVD) (WS) (Rated/Unrated)	Summertime: Number 9A 1948	Tree Number Two	Gangster Number 1