Expert Mathematics Chapter 1: Real Numbers Class 10 Level 12

तीन संख्याओं के अभाज्य गुणनखंड \(2^5\times3^2\times5\), \(2^3\times3^4\times7\) और \(2^4\times3\times11\) हैं। उनका महत्तम समापवर्तक क्या होगा?

The prime factorisations of three numbers are \(2^5\times3^2\times5\), \(2^3\times3^4\times7\), and \(2^4\times3\times11\). What will be their HCF?

Explanation opens after your attempt
Correct Answer

A. \(2^3\times3\)

Step 1

Concept

HCF of three numbers includes only primes common to all three.

Step 2

Why this answer is correct

(2) and (3) are common, with smallest powers \(2^3\) and (3).

Step 3

Exam Tip

Do not include a prime that is not present in every number. चरण 1: तीनों के महत्तम समापवर्तक में वही अभाज्य आते हैं जो तीनों में समान हों। चरण 2: (2) और (3) तीनों में हैं, छोटी घातें \(2^3\) और (3) हैं। चरण 3: जो अभाज्य सभी में नहीं है, उसे महत्तम समापवर्तक में न लें।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(2^3\times3\).

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