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Which prime factors are common in (2^3 \times 3^2 \times 5) and (2^2 \times 3 \times 7)?
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Answer and explanation
Correct answer: (2) and (3)
Step 1: The bases of the first number are (2,3,5). Step 2: The bases of the second number are (2,3,7), so the common primes are (2) and (3). Step 3: For common factors, choose only bases present in both numbers.
Frequently asked questions
What is the correct answer to this question?
(2) and (3)
Why is this the correct answer?
Step 1: The bases of the first number are (2,3,5). Step 2: The bases of the second number are (2,3,7), so the common primes are (2) and (3). Step 3: For common factors, choose only bases present in both 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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