Find the least number by which 336 be multiplied to make it a perfect square. (a) 21 (b) 34 (c) 36 (d) 46​

Answers 1

Answer:

We observe that 336=2×2×2×2×3×7. Here both 3 and 7 occur only once. Hence we have to remove them to get a perfect square.

We divide 336 by 3 × 7 = 21 and get

336/21 = 16 = 4^2

The least number required is 21.

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