A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. In other words, a prime number can only be divided evenly (without a remainder) by 1 and the number itself.
For example:
- 2 is a prime number because it can only be divided evenly by 1 and 2.
- 3 is a prime number because it can only be divided evenly by 1 and 3.
- 4 is not a prime number because it can be divided evenly by 1, 2, and 4.
The smallest prime number is 2, which is also the only even prime number. All other prime numbers are odd. Some examples of prime numbers are 2, 3, 5, 7, 11, 13, and 17.