What is the HCF of 42 154 and 168?

Answer 1

The Highest Common Factor (HCF) of 42, 154, and 168 is the largest positive integer that divides all three numbers without leaving a remainder. To find the HCF, you can first find the prime factorization of each number: 42 = 2 x 3 x 7, 154 = 2 x 7 x 11, and 168 = 2 x 2 x 2 x 3 x 7. Then, identify the common prime factors among the numbers and multiply them together to get the HCF. In this case, the HCF of 42, 154, and 168 is 2 x 7 = 14.

Answer 2

The GCF is 14.

Answer 3

HCF(42, 154, 168) = 14.