There are several different ways to make cuboids with different shapes by using 36 cuboids with 1 cm long edges
That is to see that the multiplication of the three integers is equal to 36, because the cuboid volume is just 36, and the three integers represent the length, width and height
1.2*3*6=36
2.1*2*18=36
3.1*3*12=36
4.1*6*6=36
5.2*2*9=36
6.3*3*4=36
7.1*1*36=36
8.1*4*9=36