Easy Mathematics Chapter 1: Real Numbers Class 10 Level 8

संख्या 196 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 196?

Explanation opens after your attempt
Correct Answer

A. \(2^2\times7^2\)

Step 1

Concept

(196) can be written as \(14\times14\) or \(4\times49\).

Step 2

Why this answer is correct

Since \(14=2\times7\), \(196=2^2\times7^2\).

Step 3

Exam Tip

In square numbers, exponents are often even, so check them. चरण 1: \(196=14\times14\) या \(4\times49\) लिखा जा सकता है। चरण 2: \(14=2\times7\), इसलिए \(196=2^2\times7^2\)। चरण 3: वर्ग संख्या में घातें अक्सर सम होती हैं, इसे जांचें।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(2^2\times7^2\).

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