Factors of 18 that add up to 16

We take "Factors of 18 that add up to 16" to mean "What combination(s) of two factors of 18 when added together will equal 16?"

We find the solution by first listing all the factors of 18 and then we find all the different combinations of two factors of 18 that when added together equal 16.

The factors of 18 are 1, 2, 3, 6, 9, and 18.

After trying all the different ways of adding the factors above together, we did not find any combinations of two factors of 18 that add up to 16.

However, one could argue that factors of 18 should include the negative counterparts to the positive factors above since minus times minus equals plus.

If we include the negative factors, we find the following combination(s) of two factors of 18 that add up to 16 to be as follows:

18 + (-2) = 16

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