Factors of 48 are 1 x 48, 2 x 24, 3 x 16, 4 x 12, 6 x 8
so factors of 48 is 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
multiples of 4 is 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48
So factors of 48 that are multiples of 4 are:
4, 8, 12, 16, 24, 48
Hope this helps! :)