Hard Mathematics Chapter 1: Real Numbers Class 10 Level 10

किसी संख्या (N) का अभाज्य गुणनखंड रूप \(2^4\times3^2\times5\) है। (N) और \(2^3\times3^5\times7\) का महत्तम समापवर्तक क्या होगा?

A number (N) has prime factorisation \(2^4\times3^2\times5\). What is the HCF of (N) and \(2^3\times3^5\times7\)?

Explanation opens after your attempt
Correct Answer

A. \(2^3\times3^2\)

Step 1

Concept

HCF includes only common prime factors.

Step 2

Why this answer is correct

The common primes are (2) and (3), with smaller powers \(2^3\) and \(3^2\).

Step 3

Exam Tip

A prime appearing in only one number is not written in HCF. चरण 1: महत्तम समापवर्तक में केवल समान अभाज्य गुणनखंड शामिल होते हैं। चरण 2: समान गुणनखंड (2) और (3) हैं, छोटी घातें \(2^3\) और \(3^2\) हैं। चरण 3: जो अभाज्य केवल एक संख्या में हो, उसे महत्तम समापवर्तक में न लिखें।

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What is the correct answer to this Mathematics MCQ?

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

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