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।

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संख्या 1680 का अभाज्य गुणनखंडन कौन सा है? / Which is the prime factorisation of 1680?

Correct Answer: A. \(2^4\times3\times5\times7\). Explanation: 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। / Step 1: Write \(1680=16\times105\). Step 2: \(16=2^4\) and \(105=3\times5\times7\), so \(1680=2^4\times3\times5\times7\). Step 3: Change 105 into prime factors.

Which concept should I revise for this Mathematics MCQ?

Write \(1680=16\times105\).

What exam hint can help solve this Mathematics question?

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।