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If (72=2^3\times3^2), how many distinct prime factors does 72 have?
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Answer and explanation
Correct answer: 2
Step 1: Look at distinct prime factors, not their powers. Step 2: In (72=2^3\times3^2), the distinct primes are 2 and 3. Step 3: The number of distinct prime factors and total prime factors are different.
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
Step 1: Look at distinct prime factors, not their powers. Step 2: In (72=2^3\times3^2), the distinct primes are 2 and 3. Step 3: The number of distinct prime factors and total prime factors are different.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Fundamental Theorem of Arithmetic.
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