# Divisor – Dividend – Quotient – Reminder Divisor Dividend Quotient Remainder Let us start this topic with one example of Division which will help us to know some basic Mathematical Terms in a simple and effective way.

The mathematical relationship that exists among Divisor, Dividend, Quotient and Reminder is as follows:

Dividend = Divisor × Quotient + Reminder

Here, Dividend = 59

Divisor = 7

Quotient = 8

Reminder = 3

So, in accordance with mathematical relationship, we have

Divisor Dividend Quotient Remainder

Factors of a Number

The exact Divisor of a Number is called its FACTOR

Let us understand the definition of the term Factor with one example of Division.

In this Division, the reminder is 0 (Zero) and so, 7 is the Exact Divisor of 56 or we can say that 7 is the factor of 56.

Points to remember:

1. Every number is the factor of itself : For example: 1 is the factor of 1 itself, 5 is the factor of 5 itself, 12 is the factor of 12 itself and so on.
2. 1 is the factor of every number: For example:- 1 is the factor of 1, 1 is the factor of 5, 1 is the factor of 12 and so on.

A number can have 1(one) Factor only

A number can have 2(two) Factors only

A number can have more than 2(two) Factors

Based on Number of Factors a Number have, it can be classified as Prime Number or Composite Number or none of these.

The number that has exactly 2(two) factors [1(One) and the Number itself] are called Prime Number Numbers. From above chart, the Prime Numbers between 1 and 20 are 2,3,5,7,11,13,17 & 19

The number that has more than 2(two) factors are called Composite Numbers. From above chart, the Composite Numbers between 1 and 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18 & 20

1 is neither a prime number nor a composite number because it has only 1(One) Factor.