If (19600=2^4\times5^m\times7^2), what is the value of (m)?
Answer and explanation
Correct answer: 2
Step 1: (19600=140^2). Step 2: (140=2^2\times5\times7), so (19600=2^4\times5^2\times7^2). Step 3: Comparing gives (m=2).
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
Step 1: (19600=140^2). Step 2: (140=2^2\times5\times7), so (19600=2^4\times5^2\times7^2). Step 3: Comparing gives (m=2).
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.