What is 27 divisible by?

27 is divisible by any integer that is a multiple of 3, including 3, 6, 9, 12, 15, 18, 21, 24, and 27 itself. This is because 27 can be expressed as 3 times 3 times 3 (or 3 raised to the power of 3), so any multiple of 3 will also include at least one factor of 3.