Question

42 as a product of its prime factors can be represented as ______ .

• A. 2$\times$3$\times$11
• B. 3$\times$3$\times$7
• C. 2$\times$5$\times$7
• D. 2$\times$3$\times$7

Answer 1

The correct option is D 2$\times$3$\times$7

42= 6$\times$7
6 can be written as a product of its prime factors as $2\times 3$
6 = $2\times 3$
$\therefore$ 42 = 2$\times$3$\times$7

Hence, 42 as a product of its prime factors = 2$\times$3$\times$7