Number System Basics Important Facts: Natural Number, Prime Numbes, Whole Numbers, Even and Odd Numbers, Rational and Irrational Numbers etc.

If you going to learn mathematics it is very important to learn Number System first, Here in this article we are going to learn about Number System which includes types of numbers and its meaning.

Number System

A number is a mathematical value used in counting and measuring and performing calculations. If we go ahead we found Number System. In simple way, Number system is a method of representing numbers in a particular way.

Types of Numbers

Natural Numbers, Prime Numbers, Whole Numbers, Even Numbers Odd Numbers, Rational Numbers, Irrational Numbers etc. are some types of numbers. The details about these numbers are given below:

Natural Numbers

1. Natural Numbers:- All the numbers 1, 2, 3, 4, 5,...etc. are Natural Numbers. By these numbers we perform counting.

Whole Numbers

2. Whole Numbers:- In the set of Natural Numbers if include 0 (Zero) it will be set of Whole Number. It means: 0, 1, 2, 3, 4, 5.....are whole numbers. It is pertinent to mention here that 0 (Zero) is not a Natural Number.

Even Numbers

3. Even Numbers :- Natural Numbers which are divisible by 2, are Even Numbers. Example: 2, 4, 6, 8, 10 etc.

Odd  Numbers

4. Odd Numbers :- Natural Numbers which are not divisible by 2, are Odd Numbers. Example: 1, 3, 5, 7 etc.

Prime Numbers

5. Prime Numbers :- Natural Numbers which are not divisible by any other numbers except from 1 and self, are called prime numbers. Example: 2, 3, 5, 7, 11 etc.

Composite Numbers

6. Composite Numbers:- Natural Numbers which are also divisible by any other numbers except from 1 and self, are called composite numbers. Example: 4, 6, 8, 9, 10, 12 etc.


7. Integers:- Integers are set of whole numbers and natural numbers which includes negative values, positive values and zero also. Example: ......-2, -1, 0, 1, 2, 3....etc. An integer can be positive, negative or Zero. Example: -2, 4, 6, 595 are integers.

You can watch explanation of the above different types of numbers in this video: CLICK HERE TO WATCH

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  1. Very informative article, Which you have shared here about the Number System. After reading your article I got very much information about the various types of Number System and it is very useful for us. Thanks for sharing this article here. How To Find Even And Odd Numbers