 We have all the information you will ever need about the Factors of 18. We will provide you with the definition of Factors of 18, show you how to find the Factors of 18, give you all the Factors of 18, tell you how many Factors 18 has, and supply you with all the Factor Pairs of 18 to prove that our answer is solved correctly.

Factors of 18 definition
The Factors of 18 are all the integers (positive and negative whole numbers) that you can evenly divide into 18. 18 divided by a Factor of 18 will equal another Factor of 18.

How to find the Factors of 18
Since the Factors of 18 are all the numbers that you can evenly divide into 18, we simply need to divide 18 by all numbers up to 18 to see which ones result in an even quotient. When we did that, we found that these calculations resulted in an even quotient:

18 ÷ 1 = 18
18 ÷ 2 = 9
18 ÷ 3 = 6
18 ÷ 6 = 3
18 ÷ 9 = 2
18 ÷ 18 = 1

The Postive Factors of 18 are therefore all the numbers we used to divide (divisors) above to get an even number. Here is the list of all Postive Factors of 18 in numerical order:

1, 2, 3, 6, 9, and 18.

Factors of 18 include negative numbers. Therefore, all the Positive Factors of 18 can be converted to negative numbers. The list of Negative Factors of 18 are:

-1, -2, -3, -6, -9, and -18.

How many Factors of 18?
When we counted the Factors of 18 that we listed above, we found that 18 has 6 Positive Factors and 6 Negative Factors. Thus, the total number of Factors of 18 is 12.

Factor Pairs of 18
Factor Pairs of 18 are combinations of two factors that when multiplied together equal 18. Here are all the Positive Factor Pairs of 18

1 × 18 = 18
2 × 9 = 18
3 × 6 = 18
6 × 3 = 18
9 × 2 = 18
18 × 1 = 18

Like we said above, Factors of 18 include negative numbers. Minus times minus equals plus, thus you can convert the Positive Factor Pair list above by simply putting a minus in front of every factor to get all the Negative Factor Pairs of 18:

-1 × -18 = 18
-2 × -9 = 18
-3 × -6 = 18
-6 × -3 = 18
-9 × -2 = 18
-18 × -1 = 18

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Factors of 19
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