Question 41
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What is the least number by which 19,600 must be divided to make the quotient a perfect square?
- A 2
- B 1 Correct
- C 4
- D 7
Correct Answer: Option B
19,600 = 2⁴ × 5² × 7²
Every prime already has an even power
19,600 = 140² is itself a perfect square → divide by 1
Answer: 1
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