Question

Using divisibility tests, determine the following number is divisible by $4$; by $8$.
$1700$.

Answer 1

$1700$ is divisible by $4$ because the number formed by the last two digits $\left(00\right)$ is divisible by $4$.

$1700$ is not divisible by $8$ because the number formed by the last three digits $\left(700\right)$ is not divisible by $8$.