CF of 24 = 1, 2, 3, 4, 6, 8, 12, 24
CF of 64 = 1, 2, 4, 8, 16, 32, 64
CF of 88 = 1, 2, 4, 8, 11, 22, 44, 88.
In the list above, what are the numbers can divide evenly into 24, 64, 88?
There are 1, 2, 4, 8. So common factors of 24, 64, 88 are 1, 2, 4, 8
If they're asking for greatest common factor, that will be 8 because 8 is the largest number can divide by 24, 64 and 88
Hoped this helped:)