What is Goldbach's Conjecture?

Goldbach’s Conjecture is like saying every even number bigger than 2 can be made by adding two other numbers together, and those numbers are both odd.

Imagine you have a big bag of jellybeans, and you want to know if you can split them into two groups where each group has only odd numbers of jellybeans. If the total number of jellybeans is even (like 10 or 24), Goldbach’s Conjecture says you always can, no matter how many jellybeans you have.

Let’s take an example: 10. You could split that into 5 + 5, and both 5s are odd numbers. Or 7 + 3, also two odds. It doesn’t matter which pair you pick, as long as they’re both odd.

Now try with something bigger, like 24. That can be 11 + 13, or 17 + 7, still all odds.

People have checked this for very large numbers using computers, and it always works. But no one has found a rule that explains why it’s true for all even numbers. That’s what makes Goldbach’s Conjecture so interesting!