🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусскийفارسی한국어中文日本語EntityQ168620· pop 17· linked from 147 articlestrefoil knotsimplest non-trivial closed knot with three crossingsConnectionsknot theoryEntitybraid groupEntityCategoriesAlternating knots and linksFibered knots and linksKnot theoryPretzel knots and links (mathematics)Prime knots and linksReversible knots and linksSlice knots and linksTorus knots and linksTricolorable knots and linksTwist knots