Answer:
The answer is 4.
Explanation:
To find the greatest common factor (GCF), start by listing the factors of each number.
For 24: 1, 2, 3, 4, 6, 8, 12, 24
For 64: 1, 2, 4, 8, 16, 32, 64
For 108: 1, 2, 3, 4, 6, 9, 12, 18
Since all the factors are now written out, we can find the greatest common factor between 24, 64, and 108, and the GCF is 4.