Question

The smallest $2$-digit prime number is _____.

Answer 1

Explanation:

The smallest $2$-digit number $=10$.

$10$is not a prime number as its factors are $1,2,5,10$.

Consider next number to $10$i.e., $11$

$11$ is a prime number as it has only two factors namely, $1$ and $11$.

Therefore, $11$ is the smallest $2$-digit prime number.