ELI5: Explain Like I'm 5

Fermat theory

Fermat's theory is a special idea that a smart man named Pierre de Fermat talked about a long long time ago. It's all about numbers and how they work together to make other numbers.

Imagine you have a big number, like 12. Fermat's theory says that there might be other numbers, like 3 and 4, that you can multiply together to make 12. In this case, 3 times 4 equals 12.

But Fermat's theory goes even further. It says that sometimes you can't find any two numbers that multiply together to make a bigger number. These bigger numbers are called prime numbers, and they're super special because they can only be made by multiplying one with itself.

Fermat's theory also talks about something called a Pythagorean triple. This is when you have three numbers that work together to make a special shape called a right triangle. It's really cool because the three numbers have a special relationship with each other, and Fermat found a way to figure out what those numbers could be.

Overall, Fermat's theory is all about solving puzzles with numbers and finding new ways to understand how they work together.
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