what are natural numbers in math? - Mathscolor

Welcome to the mathscolor, and today we will cover natural numbers in math. For our reader's, especially for kids we have started mathscolor, and we want to show the color in very precise but easy to remember way.

Natural Number – Definition

Natural numbers in math are non-negative, whole number. We can use natural numbers to organize things or for counting purpose.

Example – Natural numbers

1, 2, 3, 4, 5, 6, 7…. These are the examples of the natural numbers.

Example - non-natural number

-1, -2, -3, -4,… Negative numbers are not a natural number.

3/2, 4/5, 5/7… is also a non-natural number.

Natural numbers in math - Notation

The sets of natural numbers can be denoted by ‘N’, like:

N= {1,2,3,4…}

N= {0,1,2,3…}

Is zero is a natural number?

Well some books or mathematicians consider zero as a natural number and some says it is not. Now the point is whom you want to follow? Because ultimately you want to correct your dictionary for the same. Let’s try to solve the query.

Check natural number definition, it says natural numbers are a non-negative number. Now you tell me, zero (0) is the negative or positive number? Certainly it is not negative, and according to the definition it can be considered as a natural number.
  

Positive integers – {1, 2, 3, 4, 5, 6….}, Yes, these are a natural numbers in math.

Whole numbers - {0, 1, 2, 3,…} These are also a natural numbers in math, and hence if you will see technically, then it is right too.

Conclusion

We have just seen the definition and if’s and but’s of the natural numbers in math with examples. If somebody will ask what is a natural number, then you can convey positive integers, and yes, you can consider zero in natural numbers as well. In general, natural numbers will start from 1, and I think you should listen to the general terms as well. In case, you want to argue with your friends or opponents on the natural numbers, then you can raise zero as well.

What next? Next we will talk about the integers in maths.

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