🌐EnglishEnglishEspañolFrançaisItalianoNederlandsSvenskaTiếng ViệtРусский中文日本語EntityQ1402534· pop 10· linked from 34 articlesPolignac's conjectureconjecture in number theory involving prime gapsConnectionsFirst Hardy–Littlewood conjectureEntityInternational Standard Book NumberEntityCategoriesConjectures about prime numbersUnsolved problems in number theory