In the previous pages, we have learned that a number can be expressed as a product of two numbers which we call factors. For example, in the multiplication sentence 2 x 3 = 6, [b]6 is the product[/b] and [b]2 and 3 are factors[/b]. The expression 2 x 3 is a[b] factorization of 6[/b]. [br][br]We also learned that there are numbers with only two factors (or one factorization). For example, the number 7 has only 1 and 7 as factors (or only 1 x 7 as factorization). These numbers are called [b]prime numbers[/b]. Since the factors are also divisors of the number, another way to think about a prime number is that it is [b]a number that has only two divisors, 1 and itself[/b].[br][br]Numbers with more than two factors (or divisors) are called[b] composite numbers[/b]. For example, the number 6 can be factorized as 1 x 6 and 2 x 3, which means that it has 4 factors. These are 1, 2, 3, and 6. [br][br]Also, the number 1 is a special number. It is not composite and it is not prime.

Classify the numbers as prime or composite. Use the red button to drag the numbers inside the appropriate rectangle.