Find the cube-roots of -2744000

Prime factors of 2744000:

$\sqrt[3]{-2744000}\\[1em] = -\sqrt[3]{(2 \times 2 \times 2) \times (2 \times 2 \times 2) \times (5 \times 5 \times 5) \times (7 \times 7 \times 7)}\\[1em] = -(2 \times 2 \times 5 \times 7)\\[1em] = - 140$

Hence, $\sqrt[3]{-2744000} = -140$