🌐EnglishEnglishDeutschFrançaisPolskiРусскийالعربية中文EntityQ910469· pop 10· linked from 8 articlesfour factor formulaAlso known as the four-factor formulaformula used to calculate nuclear chain reaction growth rateAvailable in 10 languagesFrançaisDeutsch中文РусскийالعربيةLithuanianPolskiUkrainianUzbekConnectionsInternational Standard Book NumberEntitynuclear reactorEntityCategoriesNuclear technologyRadioactivity