🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусский한국어日本語EntityQ7263849· pop 7· linked from 12 articlesPythagorean quadruplefour integers where the sum of the squares of three equal the square of the fourthConnectionsintegerEntityfunctionEntityCategoriesAdditive number theoryArithmetic problems of plane geometryDiophantine equationsDiophantine geometryPythagorean theoremSquares in number theory