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Class 10MathematicsReal NumbersHCF and LCM using prime factorisationEasyLevel 10

What is the HCF of (40) and (60)?

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Answer and explanation

Correct answer: (20)

Step 1: (40=2^3\times5) and (60=2^2\times3\times5). Step 2: The common factors with smaller powers are (2^2) and (5). Step 3: (2^2\times5=20), so the HCF is (20).

Tags

real-numbershcfclass-10

Frequently asked questions

What is the correct answer to this question?

(20)

Why is this the correct answer?

Step 1: (40=2^3\times5) and (60=2^2\times3\times5). Step 2: The common factors with smaller powers are (2^2) and (5). Step 3: (2^2\times5=20), so the HCF is (20).

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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