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Class 10MathematicsReal NumbersHCF and LCM using prime factorisationExpertLevel 12
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The HCF of two numbers is (54) and their LCM is (4158). If one number is (378), what is the other number?

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Answer and explanation

Correct answer: (594)

Step 1: Product of two numbers equals HCF times LCM. Step 2: The other number is (\frac{54\times4158}{378}=594). Step 3: Notice (378=54\times7) and simplify the division first.

Related tags

Real-NumbersHcf-LcmUnknown-NumberExam-Oriented

Frequently asked questions

What is the correct answer to this question?

(594)

Why is this the correct answer?

Step 1: Product of two numbers equals HCF times LCM. Step 2: The other number is (\frac{54\times4158}{378}=594). Step 3: Notice (378=54\times7) and simplify the division first.

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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