# what is numbers | Basics of Numbers & digits for Beginners

Before entering the world of mathematics you should know what is numbers. In the world of mathematics digits and numbers are toys for us to play with. Hence if you want to be a good student in mathematics you should Learn the concept and ideas behind these 2 very vital parts of mathematics.

## Digit

-A digit is a symbol, with the help of which we can write any number of the proposed number system. digits are ten in number from 0 to 9 . friends 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 is known as digit

suppose, we want to write the number 21. this can be written with the help of 2 digits 2 and 1.

Now moving toward the number…

## Number

In this post what is numbers I am sure that The number is not a new thing for you. I am sure you have encountered it at various places and activities in your day to life.

The number can be defined as the amount of something. for example, if we measure some length with some standard unit of length or we measure the weight of some sweet say laddu. we will have to express these measurements in terms of some value and that value can be written in terms of numbers with the help of digits.

Hence Number is the notations that we write with the help of digits to express the values of some measurements.

The number can be of 1 digit or can be in terms of a series of digits. for example, if someone says -” I am giving you 2 gold coins” here 2 is a single-digit number. at the same time, you either remember your mom’s phone number which is also a number that contains a series of digits. Postal codes are numbers with a series of digits. your social security number or your ID Number can be the number containing a series of digits.

## Types of Numbers

Basically, Numbers can be divided into 2 major parts that are Real and Complex numbers. in lower standards, we do not study Complex numbers. hence we will focus on the real number.

Primarily there are 4 types of Numbers

• Natural Number
• Whole Number
• Integers
• Rational Numbers &
• Irrational Numbers

## #1. Natural Number–

These are common counting numbers that contain numbers from 1 to ∞. Real numbers are the part of real numbers which includes only positive integers but don’t include negative decimals, or zero.

## #2 Whole Numbers –

The set of Natural Numbers including 0 is known as Whole Numbers. hence whole numbers are 0,1,2,3…………………∞

## #3 Integers-

integers are the type of number which contains Positive and negative numbers. an integer can be positive, negative, or zero but can never be a fraction.

an integer is a Latin word that means whole or intact. The Integers are represented as ‘Z’ Zero is neither a positive nor a negative integer. 0(zero) is a neutral number i.e. zero has no sign (+ or -).

## #4 Rational Numbers –

A rational number is a number that can be written in terms of fractions or in terms of p/q, where q0.

## Natural Number from 1 to 100

The natural numbers from 1 to 100 are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 and 100.

## Some FAQ

### Is 0 a Natural Number?

No, zero(0) is not a natural number. because as per the definition we know natural numbers are the counting numbers from 1 to infinity.

### is 2 a rational number?

yes 2 is a rational number as from the definiton above it satisfies the conditon of p/q . where q 0 .

### what are irrational numbers?

Irrational numbers are the set of all real numbers which are not rational numbers.