Tap the blue circles to see an explanation.
| $$ \begin{aligned}2^9\cdot3^5(2^4\cdot3^2)^2& \xlongequal{ }512\cdot243(16\cdot9)^2 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}124416\cdot144^2 \xlongequal{ } \\[1 em] & \xlongequal{ }124416\cdot20736 \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle2}{\textcircled {2}} } }}}2579890176\end{aligned} $$ | |
| ① | $$ 512 \cdot 243 = 124416 $$$$ 16 \cdot 9 = 144 $$ |
| ② | $ 124416 \cdot 20736 = 2579890176 $ |