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By what smallest number must 1350 be multiplied to make it a perfect square?

Competition practiceNumber System, HCF & LCM

A2
B3
C15
D6

Step-by-Step Solution

1350 = 2 \times 3^{3} \times 5^{2}

. The unpaired factors are 2 and 3, so multiply by 6 to get

8100 = 9 0^{2}

.

Answer: D) 6

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