The H.C.F of 45 and 25 is:

The H.C.F of 45 and 25 is:

Explanation

Prime factorization of

25 is (5 × 5)

45 is (3 × 3 × 5)

As visible, 25 and 45 have only one common prime factor i.e. 5.

Hence, the GCF of 25 and 45 is 5.