Question

Circle the numbers which are divisible by $9$.

$54081054231437026541248$.

Answer 1

Finding the numbers which are divisible by $9$.

Given numbers are $540810,542314,37026$ and $541248$.

We know that a number is divisible by $9$, if the sum of its digits is divisible by $9$.

So, by calculating the sum of the digits of the given numbers we get,

$$\begin{gathered} 5+4+0+8+1+0=18 \\ 5+4+2+3+1+4=19 \\ 3+7+0+2+6=18 \\ 5+4+1+2+4+8=24 \end{gathered}$$

As $18$ is divisible by $9$.

So we can say the numbers $540810$ and $37026$ are divisible by $9$.

Hence, $\overline{)540810}542314\overline{)37026}541248$.