1, factor, which basically means "element, factor and component". For example, there are many factors that affect the harvest of crops. From Sun Yat-sen's Industrial Plan: All human knowledge is accumulated by printing, so it is a major factor of civilization.

2. Mathematical concept of factor: factor is also called factor. If an integer is divisible by another integer, the former is called a factor of the latter. For example, 1, 3,5 and 15 are all factors of 15. Also known as factor. If a polynomial is divisible by another polynomial, the former is called a factor of the latter. For example, m- 1 is a factor of ㎡- 1. Also known as factorization.