Answer:
1, 3, 9, and 27
Step-by-step explanation:
1. The factors of 27 are numbers which when multiplied by another equal 27.
2. We know for sure that a number multiplied by one is still that number, so this means that two factors are 1 and 27.
3. Now, since 3 and 9 are the only remaining numbers that can multiply by each other to get 27 (after a series of trials), the factors are: 1, 3, 9, and 27.