Question

Find the HCF of the numbers in each of the following, using the prime factorization method:
272, 425

Answer 1

Given numbers are 272 and 425.
We have:

Now, 272 = 2 × 2× 2 × 2 × 17
425 = 5 × 5 × 17
∴ The required HCF is 17.