Mathematics: There is a cuboid whose length, width and height are A cm, B cm and C cm respectively (A, B and C are prime numbers), and the sum of the products of its front and left side is 36 square centimeters. Find a, b and C.

The sum of its front and left is 36 square centimeters.

Front = length * height, left = width * height

Sum of Front Left = Height * (Length+Width)

36=3* 12=3*(5+7)

So it is 7 long, 5 wide and 3 high.