Factors of 16 that add up to 15

We take "Factors of 16 that add up to 15" to mean "What combination(s) of two factors of 16 when added together will equal 15?"

We find the solution by first listing all the factors of 16 and then we find all the different combinations of two factors of 16 that when added together equal 15.

The factors of 16 are 1, 2, 4, 8, and 16.

After trying all the different ways of adding the factors above together, we did not find any combinations of two factors of 16 that add up to 15.

However, one could argue that factors of 16 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 16 that add up to 15 to be as follows:

16 + (-1) = 15

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