Which integer can be divided evenly by 2?

An even number is defined as any integer that can be divided evenly by 2, meaning it has no remainder when divided by 2. By this definition, the key characteristic of even numbers is that they are multiples of 2, represented generally as 2n, where n is an integer.

In contrast, odd numbers cannot be divided evenly by 2; they will always leave a remainder of 1. Composite numbers are defined as integers greater than 1 that are not prime, meaning they have factors other than 1 and themselves, but this classification does not necessarily imply their ability to be evenly divided by 2. Prime numbers are positive integers greater than 1 that have no divisors other than 1 and themselves; while some prime numbers (like 2) are even, most are odd and cannot be divided evenly by 2.

Thus, the most fitting answer to the question of which integer can be divided evenly by 2 is the even number, as it perfectly fulfills this requirement.