# What is a prime factor of the composite number 16?

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### Can a composite number have composite and prime factors?

A composite number has more than two factors. A prime number has exactly two factors. A prime factor is a factor that is a prime number. All numbers can be written as a prime number or the product of prime factors. So, all composite numbers have prime factors. Here are examples: 10 = 2 x 5 11 = 11 12 = 2 x 2 x 3 13 = 13 14 = 2 x 7 15…

### Is a prime number because it has a factor of 5?

A prime number is a number that is only divisible by one and itself. For example, the number five is a prime number, but its multiples are not because they are divisible by five. The prime numbers from one to twenty are 2, 3, 5, 7, 11, 13, 17, and 19. A composite number is the opposite of a prime number. A composite number can be divided by more numbers than just one and itself…