🌐EnglishEnglishDeutschEspañolFrançaisItalianoPortuguêsTiếng ViệtРусскийالعربية中文日本語EntityQ2344088· pop 15· linked from 127 articlesChen primeprime number p where p+2 is prime or semiprimeAvailable in 15 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةEsperantoGreekConnectionslist of prime numbersEntityChen JingrunEntityCategories1966 in scienceClasses of prime numbers