Find the smallest square number that is divisible by each numbers 4, 9 and 10
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the smallest square number which is divisible by 4, 9 and 10 is 900.
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Answer:
L.C.M. of 4, 9 and 10 is 180.
Prime factors of 180 = 2 x 2 x 3 x 3 x 5
Here, prime factor 5 has no pair. Therefore 180 must be multiplied by 5 to make it a perfect square.
therefore 180×5=900
Hence, the smallest square number which is divisible by 4, 9 and 10 is 900.
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