Answer
$2^{6}\times5$
Work Step by Step
In order to find the prime factorization of 320, we can try to divide 320 by the first prime, 2.
$320\div2=160$
Try to divide 160 by 2.
$160\div2=80$
Try to divide 80 by 2.
$80\div2=40$
Try to divide 40 by 2.
$40\div2=20$
Try to divide 20 by 2.
$20\div2=10$
Try to divide 10 by 2.
$10\div2=5$
5 itself is a prime number, so we cannot simplify any more. The prime factorization of 320 is $2\times2\times2\times2\times2\times2\times5=2^{6}\times5$.