Henry Ernest Dudeney/Modern Puzzles/175 - Is it Very Easy/Solution

by : $175$

 * Is it Very Easy?

Solution
All $8$ rows give the same product $4096$:


 * $\begin{array}{|c|c|c|}

\hline 2^7 & 2^0 & 2^5\\ \hline 2^2 & 2^4 & 2^6 \\ \hline 2^3 & 2^8 & 2^1 \\ \hline \end{array}$

As reminds us:


 * Of course, every arithmetician knows that $2^0$ equals $1$.