Equilibrium: JEE Main 2021 Chemistry question

PCl₅ $\rightleftharpoons$ PCl₃ + Cl₂ K_c = 1.844 3.0 moles of PCl₅ is introduced in a 1 L closed reaction vessel at 380 K. The number of moles of PCl₅ at equilibrium is ______________ $\times$ 10^$-$3. (Round off to the Nearest Integer)