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What do you think of when you hear the word “prime”? If your answer is anything other than a positive integer, then this blog post might make your head spin. Negative numbers are not prime and cannot be prime because they can never have any factors which would make them divisible by any number besides themselves. Here is an example of a prime number: 17. It has one factor, itself. Since it is only divisible by this one factor, we know that there are no other factors to divide the number with and make it not be prime. If you take any two numbers (or more) and multiply them together while they share at least one common factor then the product will have some additional factors besides those shared ones. For instance, if you multiplied 12 x 18, what would happen? There are three new factors that come from these multiplications including 36 as well as 18×18=216 and 12×12=144 because both pairs have something in common (their respective twos). Prime numbers can never have anything else but themselves for their

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