# What is a Prime?

Have you ever wondered what makes a number special and different from others? That’s what a “prime” is all about! In math, a prime is a special type of number. A prime number is a number that can only be divided evenly by 1 and itself. This means it has exactly two factors. Think of it like being part of an exclusive club where only a few numbers belong.

Let’s look at some examples to understand it better. The number 2 is the smallest prime number. It’s unique because it’s the only even prime number. Other examples of prime numbers are 3, 5, 7, and 11. For instance, if you take the number 5, you can only divide it by 1 and 5 to get whole numbers. If you try dividing it by anything else, it won’t work out evenly, making it a prime number!

Prime numbers are important because they are the building blocks of all numbers. Just like LEGO bricks can be combined to create different shapes and structures, prime numbers can be multiplied to make other numbers. For example, the number 15 is not a prime because it can be divided by 3 and 5, both of which are primes. Prime numbers also play a crucial role in computer security, helping to keep our online information safe. So, even though they might seem like simple numbers, primes have a big impact on our world!