 Hello and welcome to the session. Let us discuss the following problem today. Given that hcf of 306 and 657 is equal to 9, find lcm of 306 and 657. Now let us write the key idea for that review using another problem. That is, a,b into lcm of a,b is equal to a into b. Now let us write our solution. Given to us is a is equal to 306, b is equal to 657 and hcf of 306,657 is equal to 9. And we have to find the lcm. Therefore, lcm of 306,657 is equal to a into b divided by hcf of 306,657 which is equal to 306 into 657 divided by 9. It cuts by 3. It cuts by 3. We get 1, 0, 2. Again this 3 gets cut and here we get 2, 1, 9. Therefore, which is equal to 1, 0, 2 into 2, 1, 9 which is equal to 2, 2, 3, 3, 8. Hence, required lcm of 306,657 is equal to 2, 2, 3, 3, 8. I hope you understood this problem. Bye and have a nice day.