🌐EnglishEnglishFrançaisItalianoNederlandsPolskiРусский中文日本語EntityQ2526246· pop 11· linked from 17 articlesGauss's lemmaAlso known as Gauss' lemmaCondition under which a integer is a quadratic residueAvailable in 11 languagesFrançais中文日本語РусскийItalianoCroatianHebrewNederlandsPolskiUkrainianConnectionscoprimeEntityalgebraic number fieldEntityCategoriesLemmas in number theoryModular arithmeticQuadratic residueSquares in number theory