Answer:
4
Step-by-step explanation:
Nothing higher than 12 can be a possiblity for 24.
24 1, 2, 3, 4, 6, 8, 12, 24.
32 1, 2, 4, 8, 16
36 1, 2, 3, 4, 6, 9, 12, 18
The one number that shows up the most and at the highest value, is 4. So the GCF is 4
