The number 4 is the first composite number because it can be divided by 1, 2, and 4. For example, if we started with the number 14, we would eventually get to 7, which is a prime number.Ĭomposite numbers are also known as “factors.” The number 1 is not a composite number because it can only be divided by 1. We can continue this process until we find a composite number that can’t be divided evenly by any other number. 1 is not a prime number because it can only be divided evenly by itself. 4 is a composite number because it can be divided evenly by 1, 2, and 4. 2 is a prime number because it can only be divided evenly by itself and 1.
6 is a composite number because it can be divided evenly by 1, 2, 3, and 6. We know that 12 is a composite number because it can be divided evenly by 1, 2, 3, 4, 6, and 12. To find a prime number, you start with a composite number and keep dividing it by other numbers until you find a number that can’t be divided evenly anymore.įor example, let’s start with the number 12. A prime number is a number that can only be divided evenly by itself and 1. Composite numbers are important in mathematics because they can be used to find prime numbers.
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