Question

smallest square number divisible by 8, 15, 20?​

Answer 1

Step-by-step explanation:

First, we have to find out the LCM of 8, 15 and 20 i.e. , 120.

We know that 120 is not a perfect square.

Therefore we need a number which when multiplied by 120, form a new number which is a perfect square.

prime factors of 120 = 2x2x2x5x3

Since, 2,5 and 3 are left unpaired,

Hence, we'll multiply 120 by 2,5 and 3 to get a number which is divisible by 8,15 and 20.

120 x 2 x 5 x 3 = 3600

Hence, 3600 is the required square number which is divisible by 8, 15 and 20. ANS.

Answer 2

Answer:

3600

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