Question

The smallest 3 digit prime number is-

• A. $100$
• B. $101$
• C. $103$
• D. $109$

Answer 1

The correct option is B

$101$

Let us consider the smallest three-digit number which is $100.$

$\frac{100}{2}=50$

$\therefore$ 100 does not belong to the prime number group.

Let us take $101,$ which is not divided by any of the prime numbers$2,3,5,7\dots .$

$\therefore$ $101,$ is a prime number.

Hence, $101,$ belongs to the smallest three-digit prime number group.