其它
$$2^{5}$$ means $$2$$ multipled by itself $$5$$ times, i.e. $$2^{5}=2\times2\times2\times2\times2=32$$. What is $$3^{4}$$ equal to? 
Overseas Competition->Knowledge Point->Calculation Modules
$$3\times3\times3\times3=81$$ 