Dual Nature of Radiation

Monochromatic light of frequency $6 \times 10^{14} \mathrm{~Hz}$ is produced by a laser. The power emitted is $2 \times 10^{-3} \mathrm{~W}$. How many photons per second on an average, are emitted by the source ? (Given $\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}$ )