what is the divisor

In mathematics, a divisor is a number that divides another number either completely or with a remainder. It is one of the four significant terms used in division, along with the dividend, quotient, and remainder. The divisor is the number that performs the division operation on another number, which is called the dividend. When a divisor divides a number completely without any remainder, it is called a factor of that number. For example, 3 is a factor of 9 because 9 can be divided by 3 without any remainder. Every factor of any number is a divisor, but not all divisors are necessarily factors of the numbers. A number can be a divisor of itself, and the quotient will be 1, and the remainder will be 0 in such cases.