What is the correct prime factorisation of 4200?
Advertisement
Answer and explanation
Correct answer: (2^3\times3\times5^2\times7)
Step 1: Write (4200=42\times100). Step 2: (42=2\times3\times7) and (100=2^2\times5^2), so (4200=2^3\times3\times5^2\times7). Step 3: Count the powers of 2 and 5 carefully.
Frequently asked questions
What is the correct answer to this question?
(2^3\times3\times5^2\times7)
Why is this the correct answer?
Step 1: Write (4200=42\times100). Step 2: (42=2\times3\times7) and (100=2^2\times5^2), so (4200=2^3\times3\times5^2\times7). Step 3: Count the powers of 2 and 5 carefully.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.
Advertisement