Question

what is the hcf of 45​

Answer 1

Answer:

The prime factorization of 45 is 5 x 3 x 3. The prime factorization of 60 is 2 x 2 x 3 x 5. Therefore the HCF (highest common factor) of these two numbers is the set of factors that appear in both: that's one 3 and one 5.

Answer 2

Answer:

The HCF means highest common factor, the highest factor of 45 is 45 itself. The prime factorisation of 45 is 3 x 3 x 5.

Explanation:

Hope it helps.