What is 17 (number)?
{{dablink|This article is about the number seventeen. For the year, see [[17]].}} {{Infobox number | number = 17 | numeral = septendecimal | factorization = [[prime number|prime]] | prime = 7th | divisor = 1, 17 }} {{wiktionary|seventeen}} '''17''' ('''seventeen''') is a [[number]]. It comes between [[sixteen]] and [[eighteen]], and is an [[odd number]]. It is also the 7th [[prime number]], after [[two|2]], [[three|3]], [[five|5]], [[seven|7]], [[eleven|11]], and [[thirteen|13]]. In ordinal, It is 17th (seventeenth). In Italy, 17 is considered an unlucky number. In [[Roman numerals]], 17 is written as '''XVII'''. {{Math-stub}} [[Category:Integers]] [[Category:Prime numbers]]