Why is 13 a prime number?

13 is prime because it can only be divided evenly by 1 and itself, like a shy kid who only wants to play with their best friend and no one else.

Imagine you have 13 candies. If you want to share them equally, the only ways are:

• Give all 13 to one person
• Give 1 candy to each of 13 people

You can't split them into groups like 2 or 3 without having leftovers, that’s what makes prime numbers special.

Take 6 candies instead. You could:

• Share with 2 people (3 each)
• Share with 3 people (2 each)

But 13? If you try to share them with 2 friends, one gets 6 and the other gets 7, not equal! That’s why 13 is a prime number, but 6 isn’t.13 is prime because it can only be divided evenly by 1 and itself, like a shy kid who only wants to play with their best friend and no one else.