**Table of Contents**

- Natural Numbers Definition

– Largest Natural Number

- Successor and Predecessor
- Summary
- What’s Next?

In the first segment of the chapter Whole numbers, we will learn about the basic type of numbers, known as Natural numbers.

## What are Natural numbers?

Natural numbers are the numbers which are used to count something. They are called so because they come naturally to us when we are counting, hence they are also known as Counting numbers.

Natural numbers start from number 1 and go on and on. We count them as 1, 2, 3, 4, 5, 6, 7,

….

**What is the largest natural number?**

There is no largest natural number. To understand this, let us take a few examples:

## Can we count the number of students in a class?

Yes, we can.

## Can we count the numbers of students in a school?

Yes. We just need to count the number of students in each class and add them. The total number of students in the school will be greater than the number of students in a class.

## Can we count the number of people in a city?

Although a lot of extra help will be needed, it is possible to count the number of people in the city. The number of people in the city will be greater than the number of students in a school.

**Can we count the number of people in a country? Or the number of people on the planet? Or the number of people in the next 10 years?**