Question

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

Answer 1

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Smallest least number divisible by 6,9,15 and 20 is its L.C.M. Its LCM is 180. Therefore there is no factor to form pair of 5, so to make it a perfect square we multiply 180 with 5 to get 900. Hence least square number divisible by6,9,15 and 20 is 900.

Answer 2

Answer:

180

Step-by-step explanation:

we find the lcm of these numbers