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Name _________________________________ Date ______________________________ Class ______________ Prime and Composite Numbers Definitions 1. A prime number has only two factors: 1 and itself. 2. A composite number has more than two factors. 3. The number 1 is neither prime nor composite. We have determined if a single number is prime or composite. Let's look at a range of numbers to see if they are prime or composite. Please note that each range of numbers given in Examples 3, 4 and 5 below are inclusive.