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Review: Counting Prime Number Factors
Explanation
To be ready for this question, we must have prime
factorization always within arm's reach. First, we can express the number 3,366
in its prime factorization.
We have four distinct primes: 2, 3, 11, and 17. Therefore,
there are four primes between 1 and 30 that are factors of 3,366.
The correct answer is (D).
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