Question

What is the highest common factor of 45,75and81

Answer 1

Answer:

i hope it help you.........

Answer 2

Answer:

3

Step-by-step explanation:

On prime factorization, we get

45 =  3 x 3 x 5

75 = 3 x 5 x 5

and , 81 = 3 x 3 x 3 x 3

and HCF is defined as the highest common factor.

So, on comparing the prime factorization all three number, we get

3 is the ONLY and highest common factor.

Hence, HCF of 45, 75 and 81 is 3.