#### Answer

$5^1*2^4$
or
$5*2^4$

#### Work Step by Step

There is only one 5 so 5 has and exponent of 1. There are four 2's so the 2 has an exponent of 4
$5^1*2^4$
It can also be written in a way that most people do, with anything that has an exponent of 1 just being invisible
$5*2^4$