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If two numbers have prime factorisations (2^3\times3) and (2^2\times3^2), what is their HCF?
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Answer and explanation
Correct answer: 12
Step 1: For HCF, take the smaller powers of common prime factors. Step 2: The smaller power of (2) is 2 and of (3) is 1, so (2^2\times3=12). Step 3: Use smaller powers for HCF.
Frequently asked questions
What is the correct answer to this question?
12
Why is this the correct answer?
Step 1: For HCF, take the smaller powers of common prime factors. Step 2: The smaller power of (2) is 2 and of (3) is 1, so (2^2\times3=12). Step 3: Use 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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