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prime divisibility rule MCQ Questions for Class 10

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Practice Questions

1 questions tagged with prime divisibility rule.

Question 1/1 Medium Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 16

\(\sqrt{3}\) की सिद्धि में \(p^2=3q^2\) से (p) (3) से विभाज्य है। यह किस नियम पर आधारित है?

In the proof of \(\sqrt{3}\), from \(p^2=3q^2\), (p) is divisible by (3). This is based on which rule?

Explanation opens after your attempt
Correct Answer

A. यदि अभाज्य संख्या किसी वर्ग को विभाजित करे, तो वह मूल संख्या को भी विभाजित करती हैIf a prime divides a square, it divides the original number

Step 1

Concept

From \(p^2=3q^2\), \(p^2\) is divisible by (3).

Step 2

Why this answer is correct

(3) is prime, so the prime divisibility rule applies.

Step 3

Exam Tip

Therefore (p) is also divisible by (3). चरण 1: \(p^2=3q^2\) से \(p^2\) (3) से विभाज्य है। चरण 2: (3) अभाज्य है और अभाज्य विभाज्यता का नियम लागू होता है। चरण 3: इसलिए (p) भी (3) से विभाज्य होगा।

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