Question

Check the divisibility of $1098$by $9$.

Answer 1

Step 1: Understanding the tests of divisibility:

Divisibility by $9$ : A number is divisible by $9$, if sum of its digits is divisible by $9$.

Step 2: Check the divisibility $1098$ by $9$.

Sum of digits of $1098=1+0+9+8=18$:

Since, $18$ is divisible by $9$.

Therefore, $1098$ is divisible by $9$.