Question

(3 × 11 × 13 + 3) is ______.

Options

• a prime number

• divisible by 13

• a composite number

• an odd number

Answer 1

(3 × 11 × 13 + 3) is a composite number.

Explanation:

(3 × 11 × 13 + 3)

= 33 × 13 + 3

= 429 + 3

= 432

Since 432 is even and greater than 2, it is divisible by 2, making it a composite number.