Question

Using divisibility test, determine $726352$ is divisible by $4$ and divisible by $8$:

Answer 1

Step 1 : Checking the divisibility by $4$

If the last two digits of a whole number are divisible by $4$ , then the entire number is divisible by $4$.

When $52÷4=13$, we get remainder zero therefore $726352$ is divisible by $4$.

Step 2 : Checking the divisibility by $8$

If the last three digits of a whole number are divisible by $8$ , then the entire number is divisible by $8$.

When $352÷8=44$, we get remainder zero therefore $726352$ is divisible by $8$

Hence, $726352$ is divisible by both $4$ and $8$.