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Class 10MathematicsReal NumbersHCF and LCM using prime factorisationEasyLevel 12
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The prime factorisation of a number is (2^3\times7^2). What is the number?

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Answer and explanation

Correct answer: (392)

Step 1: (2^3=8) and (7^2=49). Step 2: (8\times49=392). Step 3: First evaluate the powers, then multiply.

Related tags

Real-NumbersPrime-FactorisationBasic

Frequently asked questions

What is the correct answer to this question?

(392)

Why is this the correct answer?

Step 1: (2^3=8) and (7^2=49). Step 2: (8\times49=392). Step 3: First evaluate the powers, then multiply.

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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  1. 1If the product of two numbers is 3780 and their LCM is 315, what is their HCF?
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  5. 5What is the LCM of (40) and (60)?
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  7. 7What will be the LCM of (45) and (75)?
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