Even numbers are integers that can be divided by 2 without leaving a remainder. This means that when you divide an even number by 2, the result is always a whole number. Examples of even numbers include 0, 2, 4, 6, and 8. Even numbers can be found in both positive and negative forms, such as -2 and -4. They are an essential part of mathematics and are often used in various applications, including computer science and statistics. Recognizing even numbers helps in understanding patterns and sequences in numbers.