Informative line

Concept Of Whole Numbers

Idea of Whole Number

Whole numbers :

  • The numbers that consist of group of numbers starting with 0, 1, 2, 3, 4, 5, ...... and so on, one called whole numbers.
  • Whole numbers don't include any fractional, decimal or negative parts.

Ex. \(5.5,\ \dfrac{4}{2}, \; -2,\;4\dfrac{1}{3}\) are not whole numbers.

Natural numbers :

  • The numbers that consist of group of numbers starting with 1, 2, 3, 4, ..... and so on, are called natural numbers.

Ex : 1, 2, 3, 4, 5, ..... are natural numbers.

  • The set of natural numbers is denoted by N.

N = {1, 2, 3, 4, .....}

  • Natural numbers don't include any fractional, decimal or negative parts.

Ex : \(15.2,\;\dfrac{11}{2},\;-4,\;-\dfrac{18}{4}\) are not natural numbers.

Difference between natural numbers and whole numbers

Whole numbers start with zero(0) and natural numbers start with one (1).

Illustration Questions

Which one of the following is not a natural number?

A 1

B 5

C 0

D 2

×

Natural numbers start with 1. So, zero is not a natural number.

So, option (C) is correct.

Which one of the following is not a natural number?

A

1

.

B

5

C

0

D

2

Option C is Correct

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