Why is (18^2\times5) not considered the final form in prime factorisation?
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Answer and explanation
Correct answer: Because 18 is composite
Step 1: In the final prime factorisation, bases must be prime. Step 2: (18=2\times3^2), so (18^2) must be changed into (2^2\times3^4). Step 3: Do not leave a composite base in the final answer.
Frequently asked questions
What is the correct answer to this question?
Because 18 is composite
Why is this the correct answer?
Step 1: In the final prime factorisation, bases must be prime. Step 2: (18=2\times3^2), so (18^2) must be changed into (2^2\times3^4). Step 3: Do not leave a composite base in the final answer.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Prime Factorisation.
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