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Which option gives the prime factorisation of (72) correctly?
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Answer and explanation
Correct answer: (2^3 \times 3^2)
Step 1: Write (72=8 \times 9). Step 2: (8=2^3) and (9=3^2), so (72=2^3 \times 3^2). Step 3: Recognising simple squares and cubes speeds up factorisation.
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What is the correct answer to this question?
(2^3 \times 3^2)
Why is this the correct answer?
Step 1: Write (72=8 \times 9). Step 2: (8=2^3) and (9=3^2), so (72=2^3 \times 3^2). Step 3: Recognising simple squares and cubes speeds up factorisation.
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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