Search Class 10 Questions

4 results found for "number-168" in Class 10.

Question Medium Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

किस संख्या का अभाज्य गुणनखंडन \(2^4\times3\times5\times7\) है?

Which number has prime factorisation \(2^4\times3\times5\times7\)?

Explanation opens after your attempt
Correct Answer

A. 1680

Step 1

Concept

Calculate \(2^4=16\).

Step 2

Why this answer is correct

\(16\times3\times5\times7=1680\).

Step 3

Exam Tip

When there are four factors, multiply smaller products in order. चरण 1: \(2^4=16\) निकालें। चरण 2: \(16\times3\times5\times7=1680\)। चरण 3: चार गुणनखंड हों तो क्रम से छोटे गुणन करें।

Open Question Page
Ask Friends
Question Medium Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

संख्या 1680 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 1680?

Explanation opens after your attempt
Correct Answer

A. \(2^4\times3\times5\times7\)

Step 1

Concept

Write \(1680=16\times105\).

Step 2

Why this answer is correct

\(16=2^4\) and \(105=3\times5\times7\), so \(1680=2^4\times3\times5\times7\).

Step 3

Exam Tip

Change 105 into prime factors. चरण 1: \(1680=16\times105\) लिखें। चरण 2: \(16=2^4\) और \(105=3\times5\times7\), इसलिए \(1680=2^4\times3\times5\times7\)। चरण 3: 105 को अभाज्य गुणनखंडों में बदलें।

Open Question Page
Ask Friends
Question Easy Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

किस संख्या का अभाज्य गुणनखंडन \(2^3\times3\times7\) है?

Which number has prime factorisation \(2^3\times3\times7\)?

Explanation opens after your attempt
Correct Answer

A. 168

Step 1

Concept

Calculate \(2^3=8\).

Step 2

Why this answer is correct

\(8\times3\times7=168\).

Step 3

Exam Tip

To get the number from prime factorisation, multiply all factors. चरण 1: \(2^3=8\) निकालें। चरण 2: \(8\times3\times7=168\)। चरण 3: अभाज्य गुणनखंडन से संख्या पाने के लिए सभी गुणनखंडों को गुणा करें।

Open Question Page
Ask Friends
Question Easy Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 8

संख्या 168 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 168?

Explanation opens after your attempt
Correct Answer

A. \(2^3\times3\times7\)

Step 1

Concept

Write \(168=8\times21\).

Step 2

Why this answer is correct

\(8=2^3\) and \(21=3\times7\), so \(168=2^3\times3\times7\).

Step 3

Exam Tip

8 and 21 are composite, so break them further. चरण 1: \(168=8\times21\) लिखें। चरण 2: \(8=2^3\) और \(21=3\times7\), इसलिए \(168=2^3\times3\times7\)। चरण 3: 8 और 21 संयुक्त हैं, इसलिए उन्हें आगे तोड़ें।

Open Question Page
Ask Friends
Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.