Răspuns :
54 = 2 * 3 * 3 * 3
63 = 3 * 3 * 7
72 = 2 * 2 * 2 * 3 * 3
__________________________
C.M.M.D.C = 3 * 3 = 9
63 = 3 * 3 * 7
72 = 2 * 2 * 2 * 3 * 3
__________________________
C.M.M.D.C = 3 * 3 = 9