Find the smallest square number that is divisible by each of the numbers 4, 9 and 10

we know thatthe number that will be perfectly divisible by each one of 4, 9, and 10 is their LCM.

The LCM of these numbers is:


LCM of 4, 9, 10 = 2 × 2 × 3 × 3 × 5 =180


Here, prime factor 5 does not have its pair


Therefore, 180 is not a perfect square.


If we multiply 180 with 5, then the number will become a perfect square.


Therefore, 180 should be multiplied with 5 to obtain a perfect square.


Hence,


The required square number is 180 × 5 = 900


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