Question

Using the digits $2,3,9$ and $6$, write the smallest four digit number.

Answer 1

For writing the smallest four digit number by using the digits $2,3,9$ and $6$:

In order to write the smallest four digit number by using the digits $2,3,9$ and $6$, arrange the digits in ascending order.

So, the smallest four digit number by using the digits $2,3,9$ and $6$ $=2,369$.

Hence, $2,639$ is the required answer.