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Which statement about (84) and (198) is correct?
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Answer and explanation
Correct answer: Their HCF is (6)
Step 1: Prime factorise: (84=2^2\times3\times7) and (198=2\times3^2\times11). Step 2: The common smaller powers are (2) and (3), so HCF (=2\times3=6). Step 3: Before choosing a statement, check HCF and LCM carefully.
Frequently asked questions
What is the correct answer to this question?
Their HCF is (6)
Why is this the correct answer?
Step 1: Prime factorise: (84=2^2\times3\times7) and (198=2\times3^2\times11). Step 2: The common smaller powers are (2) and (3), so HCF (=2\times3=6). Step 3: Before choosing a statement, check HCF and LCM carefully.
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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