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Subjects
Class 10MathematicsReal NumbersHCF and LCM using prime factorisationEasyLevel 11
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What is the LCM of (27), (54), and (81)?

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Answer and explanation

Correct answer: (162)

Step 1: (27=3^3), (54=2\times3^3), and (81=3^4). Step 2: The highest powers are (2) and (3^4). Step 3: (2\times81=162), so the LCM is (162).

Related tags

Real-NumbersLcmThree-Numbers

Frequently asked questions

What is the correct answer to this question?

(162)

Why is this the correct answer?

Step 1: (27=3^3), (54=2\times3^3), and (81=3^4). Step 2: The highest powers are (2) and (3^4). Step 3: (2\times81=162), so the LCM is (162).

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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