Home›Browse›Brun's constant🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaРусский한국어中文日本語EntityQ850251· pop 19Brun's constantSign in to savesum of reciprocals of twin primesWikidata factsInstance ofconvergent seriesNamed afterViggo BrunShow 3 more factstime of discovery or invention1919-00-00numeric value2maintained by WikiProjectWikiProject MathematicsSources (2)wikidata.orgbooks.google.comvia Wikidata · CC0Available in 19 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCatalanEsperantoHebrewHungarianLombardMongolianNederlandsPolskiUkrainian한국어via Wikidata sitelinks · CC0