Question

lcm of 25 and 65 is 325find their HCF​

Answer 1

For 25 and 65 those factors look like this:

Factors for 25: 1, 5, and 25

Factors for 65: 1, 5, 13, and 65

As you can see when you list out the factors of each number, 5 is the greatest number that 25 and 65  so

HCF= 5