🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsSvenskaРусскийالعربية中文日本語EntityQ1548146· pop 17· linked from 32 articlesAndrica's conjectureconjectureAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBanglaConnectionsprime gapEntityFirst Hardy–Littlewood conjectureEntityCategoriesConjectures about prime numbersUnsolved problems in number theory