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 :

Types of Numbers:

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

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.

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

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


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.

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.


Watch explanation of the above in this video: CLICK HERE TO WATCH


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3 Comments

  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

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