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Orbital speed of a satellite

Find the orbital speed of a satellite in a circular orbit 1870 km above the surface of the Earth.

1870km = 1.87e6 m

I tried using the V^2=GMe/r and came up with 14.6 km/s which is wrong.

I tried finding the velocity of earth 7.91 km/s and subtracting from the 14.6 km/s and still the answer is wrong.

Am I using the right formula? Am I missing a step? Not sure what to do.