Easy Mathematics Chapter 1: Real Numbers Class 10 Level 4

यदि \(72=2^3\times3^2\), तो 72 में अलग-अलग अभाज्य गुणनखंड कितने हैं?

If \(72=2^3\times3^2\), how many distinct prime factors does 72 have?

Explanation opens after your attempt
Correct Answer

B. 2

Step 1

Concept

Look at distinct prime factors, not their powers.

Step 2

Why this answer is correct

In \(72=2^3\times3^2\), the distinct primes are 2 and 3.

Step 3

Exam Tip

The number of distinct prime factors and total prime factors are different. चरण 1: अलग-अलग अभाज्य गुणनखंडों को देखें, घातों को नहीं गिनें। चरण 2: \(72=2^3\times3^2\) में अलग-अलग अभाज्य 2 और 3 हैं। चरण 3: अलग-अलग गुणनखंडों की संख्या और कुल गुणनखंडों की संख्या अलग होती है।

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What is the correct answer to this Mathematics MCQ?

The correct answer is B. 2.

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