what number both have 12 as a GFC
24 and 12 because 24; 1, 2,4,6,8,12,2412;1,2,3,4,6,12
I said 12 and 24. 12= 1, 2 , 3 , 4 , 6, 12.
24: 1, 2, 3, 4, 6, 8, 12, 24.
my answers is 12 and 24.