Question

find the hcf of the following number by prime factorisation method
h.) 132, 680 ​

Answer 1

Answer:

4 is the hcf of these question

Answer 2

5

135: 3×3×3×5

680: 2×2×2×5×17

To find the HCF multiply all the prime factors common to both numbers.

Therefore HCF : 5