Question

find the least square number which is exactly divisible by each of the following 20, 15, 6 and 9.​

Answer 1

Answer: 5 is the least perfect square number which is exactly divisible by each of the following

Step-by-step explanation:

2|20,15,6,9

2|10,15,3,9

3|5,15,3,9

3|5,5,1,3

5|5,5,1,1

| 1,1,1,1

There are two pairs of 2 and 3 but not of 5 so we need to complete it so we need a 5