![]() ![]() It includes all the numbers explained above. In other words, each point on a number line corresponds to a real number and vice verca. ¾ is a rational number as it can be expressed as a fraction. ![]() This indicates that it can be expressed as a fraction wherein both denominator and numerator are whole numbers. Each real number can be represented on a number line. Since a rational number is the one that can be expressed as a ratio. For example 1.10100110001111., Pi and √2.Ĭollection of all the rational and irrational number is called Real Numbers. Their decimal expansion is non terminating non repeating. Numbers that can not be represented as a fraction or in form of p/q are called Irrational Numbers. Note that decimal expansion of all the rational numbers are terminating or non terminating recurring. All the natural numbers, whole numbers and integers are rational numbers. A whole number can be written as a fraction with a denominator of 1, so every whole number is included in the set of rational numbers. A set of rational numbers are represented by Q. in form of p/q where p and q are integers and q ≠ 0, are called Rational numbers. A set of intergers are denoted by ZĪll those numbers that can be represented as Fraction i.e. Integers are the set of whole numbers plus they include opposite of natural numbers are negative numbers for example. In other words, all the natural numbers except the prime numbers are composite numbers. Here 4, 6, 9 are not prime numbers because 4 and 6 are divisible by 2 whereas 6 and 9 are divisible by 3.Ĭomposite Numbers: On other hand a composite number is a natural number that is divisible by another number except 1. Prime Numbers: A prime number is a natural number that is divisible only by itself and 1. The Set of whole numbers and natural numbers also include following types of numbers: Prime Numbers and Composite Numbers A set of natural numbers is denoted by N. So let's start.Īll the numbers greater than 0 and begins at 1 are called Natural Numbers for example 1, 2, 3, 4. Numbers has always been a significant part of a human life, as numbers are helpful for them in many ways like for counting, measuring or labeling objects.Īnd over time, humans have discovered many such numbers which are not only very useful for them but also they look very facinating.īut these different types of numbers are a bit difficult to remember, and that's why I decided to write this article. ![]()
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