divisor
/dɪˈvaɪzə(r)/noun
1- Mathematics a number by which another number is to be divided【数】因子; 除数。
1.1
- a number that divides into another without a remainder公约数：
the greatest common divisor.
最大公约数。
词源
late Middle English: from French diviseur or Latin divisor, from dividere （see DIVIDE）.