\nthroot{4}{3^{12} \cdot y^{8}}

\nthroot{7}{3^{28} \cdot 5^{49}}

\nthroot{9}{3^{81} \cdot 2^{90}}

\nthroot{10}{x^{20} \cdot 2^{80}}

\nthroot{5}{7^{15} \cdot y^{50}}

\nthroot{6}{x^{36} \cdot 5^{30}}

\nthroot{5}{3^{10} \cdot 5^{45}}

\nthroot{4}{7^{4} \cdot y^{20}}

\nthroot{3}{3^{21} \cdot 2^{24}}

\nthroot{8}{x^{8} \cdot 2^{80}}

\nthroot{3}{7^{27} \cdot 5^{21}}

\nthroot{3}{x^{18} \cdot 2^{15}}

\nthroot{10}{7^{100} \cdot 5^{70}}

\nthroot{7}{3^{70} \cdot 5^{35}}

\nthroot{3}{x^{9} \cdot 2^{18}}

\nthroot{5}{3^{35} \cdot 5^{25}}

\nthroot{9}{x^{45} \cdot y^{81}}

\nthroot{7}{7^{49} \cdot 5^{21}}

\nthroot{7}{x^{70} \cdot y^{21}}

\nthroot{6}{x^{60} \cdot 2^{48}}

\nthroot{7}{3^{7} \cdot 2^{21}}

\nthroot{7}{x^{42} \cdot 2^{49}}

\nthroot{7}{3^{63} \cdot 2^{28}}

\nthroot{9}{7^{18} \cdot 5^{18}}