Classification of  Number's / Type of Numbers -

Ques.-What is Numbers? And It's Types?

Ans.- Number- We count things using numbers.We can us number to count - 1, 2, 3,... e.t.c.

the whole numbers (positive integers) 1, 2, 3, 4 ,5 ,6 ,7..etc., and sometimes zero as well.

Humans have been using numbers to count for thousands of years.

Counting Numbers: {1, 2, 3, ...}

And the Counting Number's satisfied people for a long time.

 

For example-  This is one Triangle, and these are 4 Triangles.

-Ten Type of The Number’s-

Type of Number

Example of Numbers

1-Natural Number

[ 1, 2, 3, 4, 5, .................................E.T.C ]

2-Whole Number

[ 0, 1, 2, 3, 4, .................................E.T.C ]

3-Even Number

[ 2, 4, 6, 8, 10, ................................E.T.C ]

4-Odd Number

[ 1, 3, 5, 7, 8, .................................E.T.C ]

5-Prime Number

[ 2, 3, 5, 7, 11, ...............................E.T.C ]

6-Composite Number

 [4, 6, 8, 9, 10, ................................E.T.C ]

7-Integers Number

[.....-5,-4, -3, -2, -1, 0, 1, 2, 3, 4, 5 ...... ]

8-Rational Number

[ 7/4= 1.75 , 5 , 2 , -0.1, 1/1000= 0.001 ,..E.T.C ]

9-Irrational Number

[Root 8 ,Root 1.6 ,Root 2/5 ,0.3030030003 , ....E.T.C]

10-Real Number

Natural ,Whole ,Rational ,Irrational Number are called Real Number.

 

1)- Natural Number - A whole numbers(positive integers) from 1 upwards- 1, 2, 3, 4, 5, and so on ... AND from 0 upward's in few fields of mathematic- [ 0, 1, 2, 3 ,4 ,5 ,6....] and so on ...

No negative numbers and no fractions.