If (a=2^3\times3^2\times5) and (b=2^5\times3\times5^2), what will be the power of (5) in their HCF?
Answer and explanation
Correct answer: (1)
Step 1: HCF uses the smaller power of a common prime. Step 2: The powers of (5) are (1) and (2), so the smaller power is (1). Step 3: A power of (1) is often not written, but it still matters.
Frequently asked questions
What is the correct answer to this question?
(1)
Why is this the correct answer?
Step 1: HCF uses the smaller power of a common prime. Step 2: The powers of (5) are (1) and (2), so the smaller power is (1). Step 3: A power of (1) is often not written, but it still matters.
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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