Which of the following is not a dimensionless quantity?

The power factor is defined as,$cosϕ$ which is dimensionless, the formula of quality factor, $Q = \dfrac{1}{R}\sqrt{\dfrac{L}{C}}$, which is also dimensionless, and the permeability in free space, ${\mu}_{r} = \dfrac{\mu}{{\mu}_{0}}$, but permeability in free space is defined as, ${\mu}_{0} = \dfrac{{c}^{2}}{{ε}_{0}}$, here $c$ is the speed of light in vacuum and ${ε}_{0}$ is the permittivity in free space so this having dimension.