Which of the following represents a number that can be divided evenly by 1 and itself?

The concept of a number being divisible evenly by 1 and itself applies specifically to prime numbers. A prime number is defined as a natural number greater than 1 that has no positive divisors other than 1 and itself. This means that for any prime number, when the number is divided by 1 or by itself, it results in an integer with no remainder, fulfilling the condition of being evenly divisible.

While whole numbers, integers, and rational numbers encompass a broader range of values, they do not specifically define the requirement of having exactly two distinct positive divisors (1 and the number itself). Whole numbers and integers include zero and negative numbers, which do not fit the prime number criteria. Rational numbers include fractions and can represent a wide array of values that may or may not meet the requirement of being prime.

In summary, the defining characteristic of prime numbers is what makes this answer the most fitting for the question about numbers that can be divided evenly by just 1 and themselves.