Easy Mathematics Chapter 1: Real Numbers Class 10 Level 7

संख्या 49 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 49?

Explanation opens after your attempt
Correct Answer

A. \(7^2\)

Step 1

Concept

49 can be written as \(7\times7\).

Step 2

Why this answer is correct

Since 7 is prime, \(49=7^2\).

Step 3

Exam Tip

In a square number, the same prime may appear twice. चरण 1: 49 को \(7\times7\) लिखा जा सकता है। चरण 2: 7 अभाज्य संख्या है, इसलिए \(49=7^2\)। चरण 3: वर्ग संख्या में समान अभाज्य दो बार आ सकता है।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(7^2\).

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