# The Fascinating World of Prime Numbers and Their Applications

TLDR Prime numbers, the building blocks of mathematics, are at the center of unsolved problems and mysteries. They have practical applications in cryptography and are crucial for secure communication and the creation of public and private keys for cryptocurrencies.

### Timestamped Summary

00:00
Prime numbers are the building blocks of mathematics and remain at the center of some of the most puzzling problems in the field.

01:55
Prime numbers are numbers that are only divisible by themselves and one, and there are an infinite number of them.

03:31
Prime numbers can be calculated using Euclid's theorem and any number can be broken down into component prime numbers using the prime factorization theorem, which is why prime numbers are considered the building blocks of numbers, and the density of prime numbers decreases over time according to the sieve of Aristothenes.

05:08
The distribution of prime numbers is a mystery and the Riemann Hypothesis, which is related to their distribution, is considered the greatest unsolved problem in mathematics.

06:38
Mersenne primes are a special type of prime number that can be checked relatively quickly and are often used to find the largest known prime number.

08:18
Prime numbers, such as the largest known prime number, have applications beyond pure mathematics, although for a long time mathematicians didn't think so.

09:59
Prime numbers have a practical use in cryptography, as they are used in algorithms such as RSA for secure communication and in the creation of public and private keys for cryptocurrencies.