Different types of Numbers in mathematics
1) Natural Numbers
1) Natural Numbers
Counting numbers: N = { 1,2,3,…}
2) Whole Numbers
Counting numbers and zero: No = { 0,1,2,3,…}
3) Integers
Whole numbers and opposites and zero
Ex. …,-3,-2,-1,0,1,2,3,…
4) Rational Numbers
Repeating or terminating decimals:
Q = {x | x= a/b and a ∈ z and b ∈ z and b ≠ 0}
Ex. 2/3,5/17,29/14
5) Irrational Numbers
Non repeating and non terminating decimals
Ex. √2 ,π,√7
6) Real Numbers
All real values not containing imaginary term or value.
Union of rational and irrational numbers.
Ex. R =2,√5,π,5/9 ,0
7) Even Numbers
Numbers divisible by 2
Ex.2,4,6,8,…
8) Odd Numbers
Numbers are not divisible by 2
Ex.1,3,5,7,…
9) Prime Numbers
Those numbers which are not divided by other than 1
and itself
Ex.2,3,5,7,…
10) Composite Number
A number other than 1,which is not prime number
Ex.4,6,8,9,10,…
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