🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsSvenskaTiếng ViệtРусскийالعربية中文日本語EntityQ509160· pop 16· linked from 33 articlesBrocard's conjectureconjectureConnectionsprime numberEntityFirst Hardy–Littlewood conjectureEntityCategoriesConjectures about prime numbersSquares in number theoryUnsolved problems in number theory