Problem 41 - Algebra and Trigonometry

Question

Give an example of a number that is an integer, a whole number, and a natural number.

Step-by-Step Solution

Answer

Examples include any natural number. For instance, the number 1, the number 2, 3 and so on. These are all natural numbers, whole numbers, and integers.

Step 1: Definition of Natural numbers

Natural numbers are those which start from 1 and go on to infinity, so any number from 1 upwards is considered a natural number.

Step 2: Definition of Whole numbers

Whole numbers are those which start from 0 and go on to infinity. This includes 0 and any number above 0. This means any natural number is also a whole number as they lie in the same range above 0.

Step 3: Definition of Integers

Integers are whole numbers and their negatives. This means any whole number is also an integer since they are part of the integer category.

Step 4: Finding a common number

Given the above definitions, it's clear that any natural number is also a whole number and an integer. So, any natural number can be chosen as an example.

Step 5: Choose an example

For example, the number 1 is a natural number, a whole number and an integer.