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Find the smallest square number that …

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

Posted by Jay Siddhpura 5 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

Let us find LCM of 4, 9 and 10
4 = 2 x 2
9 = 3 x 3
10 = 5 x 2
So, LCM = 2 2 x 3 2 x 5 = 180
Now the LCM gives us a clue that if 180 is multiplied by 5 then it will become a perfect square.
The Required number = 180 x 5 = 900

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