2 (number)

← 1 2 3 →
-1 0 1 2 3 4 5 6 7 8 9 → List of numbers — Integers ← 0 10 20 30 40 50 60 70 80 90 →
Cardinal	two
Ordinal	2nd; (second)
Factorization	prime
Greek numeral	Β´
Roman numeral	II
Binary	102
Ternary	23
Quaternary	24
Quinary	25
Senary	26
Octal	28
Duodecimal	212
Hexadecimal	216
Vigesimal	220
Base 36	236

"Twice" redirects here. For the girl K-Pop ~~toxic~~ band, see Twice (K-Pop girl group).

“It is the number that comes after 1 and before the rest.”
– Gołębiowski on 2

2 is the plural of 1, except in the United Kingdom where a nice man told me that the plural of 1 is "bugger off mate." The uppercase form of 2 is @, except in the UK again, where it is ".

It has been said by some poets that 2 can be quite lonely, as it is the loneliest number since the number 1.

2 is one of the most widely used numbers in the world among cultures who are able to count past 1. It often sponsors children's programs such as Sesame Street in order to promote its bipartisan political agenda. 2 is the largest gathering of no people which falls short of qualifying as a what?

Quick facts about 2 which can be used to impress acquaintances[edit | edit source]

2 is the only even prime number, which makes it quite odd.
2 and 2 make 5.
I ate 2 boxes of pizza.
The quantity 2+2 approaches infinity for very large values of 2.
2 is the number of cows that you have.
The minimum number of gods necessary for polytheism is 2.
2 is the quantity of many body parts that come standard on a human.
The copyright to the number 2 expired in 1973, before which time any use of 2 required 8 cents be mailed to the estate of Thomas Edison, who patented the number in 1913.
An archaic method of writing 2, "two", was banned in 2013 after a lengthy session of the U.S. Congress in order to discourage frivolous wasting of time.
2 has several homophones, including the article "to", the adverb "too", the slang "tew" (as in tew kewl 4 skwel), and several profanities.
There are 2 species of beetle, if you classify all beetles into 2 species.
Nice to meet you, 2!
No Japanese words end in the number 2.