$$ \begin{aligned}(\sqrt{2}\cdot31\cdot53)^3& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}8870389414\sqrt{2}\end{aligned} $$ | |
① | $$ (\sqrt{2}\cdot31\cdot53)^3 =
1643^{ 3 } \cdot \sqrt{2} ^ { 3 } =
1643^{ 3 } \sqrt{2} ^2 \cdot \sqrt{2} =
1643^{ 3 } \lvert 2 \rvert \cdot \sqrt{2} =
8870389414\sqrt{2} $$ |