The Least Common Multiple of two numbers is 84. Which of the following can be the Highest Common Factor of the two numbers?
Show answer & explanation
Correct answer: B
Explanation
Factors of 84 = 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Among the options, only 21 is a factor of 84.
HCF = 21