#### Answer

2048

#### Work Step by Step

$4^{3} \times 2^{5}$ =
$4 \times 4 \times 4 \times 2 \times 2 \times 2 \times 2 \times 2$ =
$16 \times 4 \times 2 \times 2 \times 2 \times 2 \times 2$ =
$64 \times 2 \times 2 \times 2 \times 2 \times 2$ =
$128 \times 2 \times 2 \times 2 \times 2$ =
$256 \times 2 \times 2 \times 2$ =
$512 \times 2 \times 2$ =
$1024 \times 2$ =
2048