Prime: All of the numbers on the list are this, only has 2 factors (1 & itself), if no numbers on "the list" work, the number is, if I got through the numbers on the list and get a decimal on the calculator each time, the number is , Composite: has three or more factors, if it's an even number, except for 2, if the number ends in 5 or 0, it's ..., if the number has the same digit twice (44), then it's..., if I use the calculator to divide by 3 or 7 and I get a whole number, it's, Neither: 1,

Prime & Composite

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