Atomic Structure: JEE Main 2021 Chemistry question

A proton and a Li³⁺ nucleus are accelerated by the same potential. If $\lambda _{Li}$ and $\lambda _p$ denote the de Broglie wavelengths of Li³⁺ and proton respectively, then the value of ${{{\lambda _{Li}}} \over {{\lambda _p}}}$ is x $\times$ 10⁻¹. The value of x is ______. (Rounded off to the nearest integer) [Mass of Li³⁺ = 8.3 mass of proton]