\nthroot{18}{x^{92}}

\nthroot{9}{7^{11}}

\nthroot{5}{y^{19}}

\nthroot{12}{x^{46}}

\nthroot{6}{3^{27}}

\nthroot{14}{3^{61}}

\nthroot{13}{3^{19}}

\nthroot{19}{x^{40}}

\nthroot{6}{3^{12}}

\nthroot{10}{y^{22}}

\nthroot{18}{y^{31}}

\nthroot{13}{7^{55}}

\nthroot{9}{3^{51}}

\nthroot{14}{x^{27}}

\nthroot{5}{x^{16}}

\nthroot{16}{x^{45}}

\nthroot{14}{3^{77}}

\nthroot{5}{x^{22}}

\nthroot{19}{x^{45}}

\nthroot{20}{7^{85}}

\nthroot{12}{7^{16}}

\nthroot{5}{x^{11}}

\nthroot{17}{7^{73}}

\nthroot{20}{y^{30}}