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Which smallest number should be multiplied by (2^3\times3^2\times5) to get a perfect square?
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Answer and explanation
Correct answer: (2\times5)
Step 1: A perfect square needs every exponent even. Step 2: (2^3) and (5^1) have odd powers, so multiply by (2\times5). Step 3: Do not multiply the prime whose exponent is already even.
Frequently asked questions
What is the correct answer to this question?
(2\times5)
Why is this the correct answer?
Step 1: A perfect square needs every exponent even. Step 2: (2^3) and (5^1) have odd powers, so multiply by (2\times5). Step 3: Do not multiply the prime whose exponent is already even.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.
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