What are the factors of -117?

Answer 1

The factors of 117 are 1,3,9,13,39,and 117
The factors of 117 are 1, 3, 9, 13, 39, and 117.

1,3,9,13,39,and 1171x117;3x39;9x13
To find the factors of a number, it is helpful to know the rules for checking if something is a divisor. One rule is that if a numbers digits add up to 9, the number divides by 9. In this case, 117 has digits which add up to 9, and so can be divided by 9. If we do this, we get 13, which is prime. Thus the prime factors are 3, 3 and 13. These can be combined to get the other factors. Therefore the factors of 117 are 1, 3, 9, 13, 39 and 117.

Answer 2

1, 3, 9, 13, 39, 117

-1, -3, -9, -13, -39, -117