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## #1 2015-05-23 07:09:09

### Perfect Square:

**Question:**

The least perfect square, which is divisible by each of 21, 36 and 66 is:

**Option A):**

214434**Option B):**

231444**Option C):**

214344**Option D):**

213444

**Correct Answer is Option D):**

213444

**Explanation:**

L.C.M. of 21, 36, 66 = 2772.

Now, 2772 = 2 x 2 x 3 x 3 x 7 x 11

To make it a perfect square, it must be multiplied by 7 x 11.

So, required number = 22 x 32 x 72 x 112 = 213444

Failure is the first step towards seccess.

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## 2015-05-23 07:09:09

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### Re: Perfect Square:

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