NUMBER SYSTEM

NUMBER SYSTEM CLASSIFICATION

we all know number very well these are 0,1,2,3,4,5,6,7,8,9 and so on but when it comes to classification of number then we all get confused among the types of Number and their classification. In this post we try to explain the number system in a very simple and easy way.


Number System Video Link !

https://www.youtube.com/watch?v=7hZmVlFq5Fw

NUMBER SYSTEM

Real numbers: - The Combination of rational and irrational numbers are called real numbers.

Rational numbers: - Those Numbers which can be written  in the form of P/q is called rational numbers.

where p,q are integers and q is not equal to zero.

Irrational numbers: - Those Numbers which cannot be written in the form of p/q is called irrational numbers.

Fractions:-The fraction is consisting of two parts one is Numerator and another is denominator.

Eg: 3/7,5/9,7/10…………….etc

      3,5,7 are numerators and 7,9,10 are denominators.

Natural Numbers:- Those numbers which are used in counting is                                   called Natural numbers.

Eg:-1,2,3,4,5,6,7............etc

Whole Numbers:- When zero is includec with the natural number then the set formed is called whole numbers.

Eg:-0,1,2,3,4,5,6,7...........etc

Integers:- An integer is a whole number that can be positive, negative and zero.

Zero is neither positive and nor Negative Number.

Positive integers:- 1,2,3,4,5,6…….

Negative integers:- -1,-2,-3,-4,-5,-6,…………

Even numbers:- Numbers which are divisible by 2 is called even numbers.

Eg- 2,4,6,8,10……………………….etc

Odd numbers:- Numbers Which are not divisible by 2 is called odd numbers.

Eg-1,3,5,7,9,………………..etc

Prime numbers : Numbers which have exactly two factors is called prime numbers.

Eg:-2,3,5,7,11,…………………..etc

Important points

       1) 2 is the only even prime number.

       2) Prime number greter than 3 can be written in the form 6k+1 

           and 6k-1.

       3) Their is total 25 prime numbers between 1 to 100.

       4) all natural, whole and integers are real numbers.

       5) All integers are rational numbers.

       6) There are infinite rational number between two rational                    numbers.

       7) There are infinite irrational numbers between two irrational             numbers.

Composite numbers:-Numbers which are having more than two factors are called Composite Numbers.

Eg:- 4,6,8,10,12,14,.............

Question1. How you prove that 1 is odd number?

Question2. How you prove that 0 is even number?

Question3. Prime numbers between 60 and 80?

Website Link:-

https://takeieasy.blogspot.com/

DDT video link:-

https://www.youtube.com/watch?v=Q1Jggm2IREg

BHC Video Link:-

https://www.youtube.com/watch?v=tuh66GiKaS0

Hope you like this post and if you have any question regarding the njmber and theirs classification then just leave a comment we will try to reply you soon. 

Thank you.