# Number System

## How to Find Greatest Common Divisor (GCD or HCF)

Here you will learn concept of gcd ot hcf and how to find greatest common divisor or highest common factor of numbers and fractions with examples. Let’s begin – Concept of GCD or HCF Consider two natural numbers $$n_1$$ and $$n_2$$. If the numbers $$n_1$$ and $$n_2$$ are exactly divisible by the same number x, …

## How to Find Least Common Multiple (LCM) of Numbers and Fractions

Here you will learn concept of LCM and how to find least common multiple (LCM) of numbers and fractions with examples. Let’s begin – Concept of LCM Let $$n_1$$ and $$n_2$$ be two natural numbers distinct from each other. The smallest natural number n that is exactly divisible by $$n_1$$ and $$n_2$$ is called Least …

## What are Rational and Irrational Numbers with Examples ?

Here you will learn what are rational and irrational numbers with examples. Let’s begin – What are Rational and Irrational Numbers ? Rational Number A rational number is defined as number of the form a/b where a and b are integers and b $$\ne$$ 0. The set of rational numbers encloses the set of integers …

## Prime Numbers in Math – Properties and Examples

Here you will learn what are prime numbers in math, its properties and method to check whether a number is prime or not. Let’s begin – What are Prime Numbers in Math ? A natural number larger than unity is a prime number if it does not have other divisors except for itself and unity. …

## How to Find Square Root and Cube Root of Number

Here you will learn how to find square root and cube root of a number and properties of squares and cubes. Let’s begin – Square Root and Cube Root (a) Square and Square Roots When any number multiplied by itself, it is called as the square of the number. Thus, 3 $$\times$$ 3 = $$3^2$$ …

## Concepts of Number System

We will will looking at the types of numbers like natural numbers, whole numbers, integers, prime and composite numbers etc. and basic concepts of number system.  Let’s begin – Concepts of Number System Natural Numbers and Whole Numbers Natural numbers, also called counting numbers, are the first numbers we learnt. They are the number set …