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If (a=2^2\times3^3\times5) and (b=2^4\times3\times5^2), what will be the power of (3) in their HCF?
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Answer and explanation
Correct answer: (1)
Step 1: HCF takes the smaller power of a common prime. Step 2: The powers of (3) are (3) and (1), so the smaller power is (1). Step 3: A power of (1) matters even when it is not usually written.
Frequently asked questions
What is the correct answer to this question?
(1)
Why is this the correct answer?
Step 1: HCF takes the smaller power of a common prime. Step 2: The powers of (3) are (3) and (1), so the smaller power is (1). Step 3: A power of (1) matters even when it is not usually written.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: HCF and LCM using prime factorisation.
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