Answer
$5^{2}$$\times$$4^{6}$
Work Step by Step
5$\times$5$\times$4$\times$4$\times$4$\times$4$\times$4$\times$4 can be rewritten in exponential form as $5^{2}$$\times$$4^{6}$, since we multiply 5 two times and 4 six times.
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