A 72 72 72 72 B 2 3 4 6 8 a:B 18 12 9 72 1
72/2=36 72/3=24 х/4=18 = 18*4=72 = 72/4=18 х/6=12 = 12*6=72 = 72/6=12 х/8=9 = 8*9=72 = 72/8=9 72/х=72 = 72/72=1 = 72/1=72 72/х=1=72/1=72 =72/72=1