The smallest 3 digit prime number is:

Question: The smallest 3 digit prime number is:
[A].

101

[B].

103

[C].

109

[D].

113

Answer: Option A

Explanation:

The smallest 3-digit number is 100, which is divisible by 2.

100 is not a prime number.

101 < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.

101 is a prime number.

Hence 101 is the smallest 3-digit prime number.