Remember that you learned previously that a prime number is a whole number greater than 1 which is divisible by only 1 and itself. In contrast, a composite number is a whole number greater than 1 which is divisible by 1 and itself, but also by at least one other number. This lesson is all about prime factorization and product of primes, so we’ll define what these mean. Before we do that, however, we need to talk about factors.

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