a prime number that divides a given integer exactly without a remainder; used in math and arithmetic

A number that divides exactly into two or more given integers; also known as [[公约数|公約數|gong1 yue1 shu4]] or [[公生数|公生數|gong1 sheng1 shu4]].

fill factor; packing factor; ratio of the volume of space filled by particles to the total volume, or a measure of efficiency in solar cells or storage

the largest positive integer that divides two or more integers without a remainder

To break a number down into a product of two or more [[因数|因數|yin1 shu4]], often continuing until only prime factors remain.