Question

Find the HCF of the following pairs of
numbers using the prime factorisation.
A. 16, 28 B. 12, 72 C. 66, 64​

Answer 1

Answer:

The HCF of 16 and 24 is 8. To calculate the Highest common factor (HCF) of 16 and 24, we need to factor each number (factors of 16 = 1, 2, 4, 8, 16; factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24) and choose the highest factor that exactly divides both 16 and 24, i.e., 8.