Question

'the largest prime number that is a factor of 42'

is multiplied by
'the smallest prime number that is a factor of 28'

Answer 1

14.

Explanation:

42 = 2 8 3 * 7

Largest prime factor = 7

28 = 2 * 2 * 7

Smallest prime factor = 2

Answer = 2*7 = 14.

Answer 2

The answer is 14, since 7x2=14.