Question

Express ${\left(2^3\right)}^7$as power of prime numbers.

Answer 1

According to law of exponents ${\left(a^n\right)}^m=a^{nm}$

$$\begin{gathered} {\left(2^3\right)}^7=2^{3\times 7} \\ =2^{21} \end{gathered}$$

Hence, the final answer is $2^{21}$.