15.2.6 = 3.5.2.6
4.4.9 = 4.4.3.3=4.2.2.3.3
5.3.12 = 3.5.2.6 = 3.5.3.4
8.18 = 8.2.9 = 4.2.2.3.3
15.3.4 = 3.5.3.4
8.2.9 = 4.2.2.3.3
=> 15.2.6 = 5.3.12 = 15.3.4
=> 4.4.9 = 8.18 = 8.2.9
15.2.6=3.5.2.3.2=5.32.22
4.4.9=42.32=24.32
5.3.12=5.32.22
8.18=24.32
15.3.4=32.5.22
8.2.9=24.32