Final answer:
The prime factorization of 28 is 2 x 2 x 7.
Step-by-step explanation:
The prime factorization of 28 is found by factoring 28 into its prime factors. One way to do this is to find the smallest prime number that divides evenly into 28, which is 2. Dividing 28 by 2 gives us 14. We continue this process by dividing 14 by 2 until we cannot divide any further. The result is 7. Therefore, the prime factorization of 28 is 2 x 2 x 7, which corresponds to option A: 2, 2, 7.
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