Home›Browse›640🌐한국어EnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسیहिन्दीไทย한국어中文日本語EntityQ842115· pop 20640Sign in to saveAlso known as six hundred forty, six hundred and forty자연수Wikidata factsInstance ofharshad numberShow 6 more factsnumber of decimal digits3maintained by WikiProjectWikiProject Mathematicscode൬൱൪൰numeric value640Commons category640 (number)prime factor5via Wikidata · CC0Available in 19 languages日本語ItalianoCentral KurdishCzechemlHaitian CreoleHungarianIdoMalayManipuriNorthern SothoSvenskaSwahiliTatarUrduUzbekzh_yue한국어via Wikidata sitelinks · CC0