16=2*2*2*2
48=2*7*2
36=6*6
63=7*3*3
16 = 2*2*2*2; 4*4; 8*2;
48 = 6*8; 2*7*2;
36 = 4*9; 6*6; 2*2*9;3*3*3*3;
63 =7*9; 3*3*7
16=2*2*2*2
48=2*7*2
36=6*6
63=7*3*3
16 = 2*2*2*2; 4*4; 8*2;
48 = 6*8; 2*7*2;
36 = 4*9; 6*6; 2*2*9;3*3*3*3;
63 =7*9; 3*3*7