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Which prime factors occur in the prime factorisation of (126)?
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Answer and explanation
Correct answer: (2,3,7)
Step 1: Write (126) as (2 \times 63). Step 2: Since (63=3^2 \times 7), (126=2 \times 3^2 \times 7). Step 3: While counting distinct prime factors, do not count exponents as separate numbers.
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What is the correct answer to this question?
(2,3,7)
Why is this the correct answer?
Step 1: Write (126) as (2 \times 63). Step 2: Since (63=3^2 \times 7), (126=2 \times 3^2 \times 7). Step 3: While counting distinct prime factors, do not count exponents as separate numbers.
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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