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Can single variables be called prime factors?

Prime factor decomposition of a term like 10y²z³ gives some prime numbers and single variables, e.g., 2×5×y×y×z×z×z. In this example, 2 and 5 can be called prime factors, can't they? Can y and z be ...
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Positive integers of sum and products

Find all pairs of positive integers $m$ and $n$ where $m<n$ such that the sum of $m$ and $n$ added to the product of $m$ and $n$ is equal to $2014$ I just thought about this question and wanted to ...
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