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If (a=2^3\times5) and (b=2\times5^2), what is the HCF of (a) and (b)?
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Answer and explanation
Correct answer: 10
Step 1: The common prime factors are 2 and 5. Step 2: The smaller powers are (2^1) and (5^1), so the HCF is (2\times5=10). Step 3: Remember to take smaller powers for HCF.
Frequently asked questions
What is the correct answer to this question?
10
Why is this the correct answer?
Step 1: The common prime factors are 2 and 5. Step 2: The smaller powers are (2^1) and (5^1), so the HCF is (2\times5=10). Step 3: Remember to take smaller powers for HCF.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Fundamental Theorem of Arithmetic.
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