# Prime numbers

Primes are the numbers that cannot be split into smaller factors, and every whole number is built from them in exactly one way. Euclid showed there are infinitely many. Gödel used them as letters when he turned statements into numbers.

Connects to:
- [primes in the trick](https://mapideas.org/i/th_primes)
- [numbering trick](https://mapideas.org/i/th_num)
- [Primes and commas](https://mapideas.org/i/mu_primes)
- [Symmetry](https://mapideas.org/i/mat_symmetry)
- [Is there a pattern in the primes?](https://mapideas.org/i/q_math_primes)

Sources:
- [Wikipedia: Prime number](https://en.wikipedia.org/wiki/Prime_number)
- [Wikipedia: Euclid’s theorem](https://en.wikipedia.org/wiki/Euclid%27s_theorem)

Source: https://mapideas.org/i/mat_primes · open on the map: https://mapideas.org/#mat_primes