-1 (nummer)

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← −2 −1 0 →
-1 0 1 2 3 4 5 6 7 8 9
Cardinalnegative ane
Ordinal-1st
(negative first)
Roman numeral (unicode)minus Ⅰ, minus ⅰ
Arabic١
Cheenese numeral负一,负弌,负壹
Bengali

In mathematics, −1 is the additive inverse o 1, thon is, the number thon whan addit tae 1 gives the additive identity element, 0. It is the negative integer greater than negative twa (−2) an less than 0.