If the U.S.S. Enterprise is traveling a warp speed 1.71, what is the speed in knots?

Question

Warp 1.71 = 5.00 times the speed of light; speed of light =3.00 * 10^8m/s; 1 knot = 2000 yd/h, exactly

Answer 1

5 * 3E8 m/s * s/hr * kt-hr/yd * yd/m
(hint: kt-hr/yd = 1/2000, yd/m = yd/ft * ft/m, 1 ft = 0.3048 m, 1 yd = 3 ft)
Answer is between 2.5E9 and 3E9 kt.