Number System

                         Number System

 Natural Numbers: Numbers starting from 1 to infinity are called natural numbers. For example 1, 2, 3, 4, 5………..

 

·        Whole Numbers:  If we include zero to natural numbers then they are said to be Whole numbers. For example: 0, 1, 2, 3, 4……..

·         Integers: The numbers which include zero, natural numbers and negative numbers are called integers. For example …..-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5……

·        Rational numbers:  Numbers which can be expressed in the form p/q where p and q are integers and q≠0. For example 3/5, 4/5, 2/7…..

·        Irrational numbers: A number is an irrational number if it has non-terminating non-repeating decimal representation. For example √2, √3, √5….

·      Real numbers: The set of all rational numbers and irrational numbers is called real numbers.