Schwarzschild radius:

$\overline{){{\mathbf{R}}}_{{\mathbf{s}}}{\mathbf{=}}\frac{\mathbf{2}\mathbf{G}\mathbf{M}}{{\mathbf{c}}^{\mathbf{2}}}}$

Calculate the Schwarzschild radius (in kilometers) a mini-black hole with the mass of the Moon.

Express your answer using two significant figures.

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