🌐EnglishEnglishFrançaisРусский日本語EntityQ668804· pop 5· linked from 19 articlesCovering systemAlso known as complete residue systemcollection of finitely many residue classes whose union contains every integerAvailable in 5 languagesFrançaisРусскийGalicianHungarianvia Wikidata sitelinks · CC0Connectionsmodular arithmeticEntitymathematicsEntityCategoriesUnsolved problems in number theory