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Subjects
Class 10MathematicsReal NumbersHCF and LCM using prime factorisationEasyLevel 12
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What will be the HCF of (56) and (84)?

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Answer and explanation

Correct answer: (28)

Step 1: (56=2^3\times7) and (84=2^2\times3\times7). Step 2: The smaller powers of common factors are (2^2) and (7). Step 3: (4\times7=28), so the HCF is (28).

Related tags

Real-NumbersHcfPrime-Powers

Frequently asked questions

What is the correct answer to this question?

(28)

Why is this the correct answer?

Step 1: (56=2^3\times7) and (84=2^2\times3\times7). Step 2: The smaller powers of common factors are (2^2) and (7). Step 3: (4\times7=28), so the HCF is (28).

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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