Question

Which of the following is the smallest prime number?

• A. 1
• B. 2
• C. 4
• D. 6

Answer 1

The correct option is B 2

1 is neither a prime number nor a composite number. It is a unique number with only one factor.

Factors of 2 = 1, 2
So, 2 is the smallest prime number.

Factors of 4 = 1, 2, and 4
Factors of 6 = 1, 2, 3, and 6
These have more than two factors and are composite numbers.