Three natural numbers a, B, C, known AXB = 12, bxc = 15, AXC = 20, then axbxc = several

Three natural numbers a, B, C, known AXB = 12, bxc = 15, AXC = 20, then axbxc = several

The solution is a = 4, B = 3, C = 5, so a * b * C = 60