So,
We basically have to find the GCF, or Greatest Common Factor.
To find the GCF, factor all of the numbers and find the common numbers within them.
16 = 2 * 2 * 2 * 2
8 = 2 * 2 * 2
32 = 2 * 2 * 2 * 2 * 2
We can see that there are 3 2's in all of the numbers. Therefore, the GCF must be the product of 3 2's, which is:
2 * 2 * 2 = 8
Therefore, the greatest number of flowers Sandy can have in each bouquet is 8.