🌐EnglishEnglishEspañolFrançaisРусскийالعربية日本語EntityQ18640217· pop 9· linked from 29 articlesFermat's right triangle theoremnon-existence proof in number theory, the only complete proof left by Pierre de FermatConnectionsDiophantus of AlexandriaEntityPythagorean tripleEntityCategoriesArithmetic problems of plane geometryDiophantine equationsFermat's Last TheoremSquares in number theoryTheorems in number theory