संख्या 2100 का अभाज्य गुणनखंडन कौन सा है?

Which is the prime factorisation of 2100?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

Write \(2100=21\times100\).

Step 2

Why this answer is correct

\(21=3\times7\) and \(100=2^2\times5^2\), so \(2100=2^2\times3\times5^2\times7\).

Step 3

Exam Tip

Do not keep 25 or 100 in the final answer. चरण 1: \(2100=21\times100\) लिखें। चरण 2: \(21=3\times7\) और \(100=2^2\times5^2\), इसलिए \(2100=2^2\times3\times5^2\times7\)। चरण 3: 25 या 100 को अंतिम उत्तर में न रखें।

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संख्या 2100 का अभाज्य गुणनखंडन कौन सा है? / Which is the prime factorisation of 2100?

Correct Answer: A. \(2^2\times3\times5^2\times7\). Explanation: चरण 1: \(2100=21\times100\) लिखें। चरण 2: \(21=3\times7\) और \(100=2^2\times5^2\), इसलिए \(2100=2^2\times3\times5^2\times7\)। चरण 3: 25 या 100 को अंतिम उत्तर में न रखें। / Step 1: Write \(2100=21\times100\). Step 2: \(21=3\times7\) and \(100=2^2\times5^2\), so \(2100=2^2\times3\times5^2\times7\). Step 3: Do not keep 25 or 100 in the final answer.

Which concept should I revise for this Mathematics MCQ?

Write \(2100=21\times100\).

What exam hint can help solve this Mathematics question?

Do not keep 25 or 100 in the final answer. चरण 1: \(2100=21\times100\) लिखें। चरण 2: \(21=3\times7\) और \(100=2^2\times5^2\), इसलिए \(2100=2^2\times3\times5^2\times7\)। चरण 3: 25 या 100 को अंतिम उत्तर में न रखें।