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Which is the prime factorisation of 1215?
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Answer and explanation
Correct answer: (3^5\times5)
Step 1: Write (1215=243\times5). Step 2: Since (243=3^5), (1215=3^5\times5). Step 3: 243 is composite, so write it as a power of 3 in final prime form.
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What is the correct answer to this question?
(3^5\times5)
Why is this the correct answer?
Step 1: Write (1215=243\times5). Step 2: Since (243=3^5), (1215=3^5\times5). Step 3: 243 is composite, so write it as a power of 3 in final prime form.
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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