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Class 10 Mathematics Real Numbers HCF and LCM using prime factorisationEasyLevel 11

What is the HCF of (64) and (80)?

Answer and explanation

Correct answer: (16)

Step 1: (64=2^6) and (80=2^4\times5). Step 2: The common prime factor is (2), and the smaller power is (2^4). Step 3: (2^4=16), so the HCF is (16).

Tags

real-numbershcfpowers-of-two

Frequently asked questions

What is the correct answer to this question?

(16)

Why is this the correct answer?

Step 1: (64=2^6) and (80=2^4\times5). Step 2: The common prime factor is (2), and the smaller power is (2^4). Step 3: (2^4=16), so the HCF is (16).

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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