Multiples of 18

The multiples of 18 are obtained by multiplying integers with 18. In this section, we will learn about the multiples of 18. For more details about multiples, see our page “Multiples of a Number“.

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What are Multiples of 18?

A number is called a multiple of 18 if it is completely divisible by 18 with the remainder zero.

For example, 18 divides 36 completely, so by the definition 36 is a multiple of 18. Similarly, 18, 36, 54, 72, 190, 1900, etc. are all examples of multiples of 18 as they are completely divisible 18.

Remark: From the above definition, it is clear that any multiple of 18 can be written as 18n for some integer n. So the set of multiples of 18 is given by

{18n: n is an integer}. This is the set builder form of the multiples of 18.

 

First 10 Multiples of 18

The first 10 multiples of 18 are as follows:

18×1=18 18×2=36
18×3=54 18×4=72
18×5=90 18×6=108
18×7=126 18×8=144
18×9=162 18×10=180

So we have:

The first 10 multiples of 18 are

18, 36, 54, 72, 90, 108, 126, 144, 162 and 180.

Question: What are the first ten multiples of 18?

Video Solution:

First 20 Multiples of 18

The first 20 multiples of 18 are given below:

18×1=18  18×2=36
18×3=54    18×4=72
18×5=90 18×6=108
18×7=126  18×8=144
18×9=162     18×10=180
18×11=198 18×12=216
18×13=234 18×14=252
18×15=270 18×16=288
18×17=306 18×18=324
18×19=342 18×20=360

So we have:

The first 20 multiples of 18 are

18, 36, 54, 72, 90, 108, 126, 144, 162, 180, 198, 216, 234, 252, 270, 288, 306, 324, 342 and 360.

 

Properties of Multiples of 18

• Multiples of 18 are even numbers.

• Multiples of 18 always end with either 0, 2, 4, 6 or 8.

• If a number ends with either 1, 3, 5, 7 or 9, then that number cannot be a multiple of 18.