Prime Factorization (Easy)

Prime Factorization: core idea

• 1. How many positive divisors does $36$ have?

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• 2. Find the greatest prime factor of $91$.

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• 3. What is $\gcd(18,30)$?

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• 4. What is $\operatorname{lcm}(8,12)$?

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• 5. How many distinct prime factors does $210$ have?

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• 6. Find the smallest prime factor of $143$.

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• 7. What is the product of the distinct prime factors of $60$?

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• 8. How many factors of $48$ are odd?

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• 9. Find the exponent of $3$ in $243$.

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