Certify Teacher Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

The term used for an integer greater than 1 that has no positive divisors other than 1 and itself is a prime number. Prime numbers are the building blocks of the integers and play a crucial role in number theory. By definition, a prime number cannot be divided evenly by any other integer except for 1 and the number itself, making them unique in their properties.

For example, consider the number 7. The only divisors of 7 are 1 and 7, substantiating its classification as a prime number. In contrast, composite numbers, which are incorrectly associated with this definition, are integers greater than 1 that have additional divisors other than just 1 and themselves, such as the number 8, which can be divided by 1, 2, 4, and 8.

The terms even and odd numbers describe the properties of integers concerning divisibility by 2, and they do not specifically address the concept of primality. An even number is divisible by 2 (e.g., 4), and an odd number is not (e.g., 3), but this classification does not relate to whether a number is prime. Thus, the correct identification of prime numbers focuses solely on their divis