If the order of A is 4 × 3 , the order of B is 4× 5 and the order of…

If the order of \(A\) is \(4 \times 3\), the order of \(B\) is \(4\times 5\) and the order of \(C\) is \(7\times 3\), then the order of \((A^{\prime}B)^{\prime}C^{\prime}\) is