highest common factor
noun [ C ] mathematics UK specialized uk/ˌhaɪ.ɪst kɒm.ən ˈfæk.tər/ us/ˌhaɪ.ɪst kɑː.mən ˈfæk.tɚ/ (abbreviation HCF); (US greatest common factor)
最大公约数
the highest number that a set of two or more different numbers can be divided by exactly
4 is the highest common factor of 8 and 12. 4是8和12的最大公约数。