The Lesson
An even number is a whole number that can be divided exactly by 2.Dictionary Definition
The Oxford English Dictionary defines an even number as a number "divisible integrally into two equal parts; opposed to odd."Examples of Even Numbers
Some examples of even numbers are given below:Even Numbers on a Number Line
The image below shows the even numbers on the number line.How to Check if a Number Is an Even Number
A number is even if it can be divided exactly by 2.Question
Is 24 an even number?Step-by-Step:
1
Divide the number by 2.
24 ÷ 2 = 12
2
Check if the answer from Step 1 is a whole number. If it is, the original number is even. Else it is odd.
In our example, 12 is a whole number.
Answer:
24 is an even number.Interactive Game on Even Numbers
Here is an interactive game to help you learn about even numbers and odd numbers.A Formula to Generate Even Numbers
The formula below generates even numbers:If k takes a whole number (1, 2, 3...), then n will always be even.
k = 0 ∴ n = 2k = 2 × 0 = 0
k = 1 ∴ n = 2k = 2 × 1 = 2
k = 2 ∴ n = 2k = 2 × 2 = 4
k = 3 ∴ n = 2k = 2 × 3 = 6
k = 4 ∴ n = 2k = 2 × 4 = 8