<em>Simple numbers</em> are more than numbers that are divided into themselves and into one. This is a mathematical mystery that mathematicians have been trying to solve since Euclid proved that they have no end.
<strong>The Great Internet Mersenne Prime Search project</strong>, which is faced with the task of searching for a large number of prime numbers of a particularly rare species, recently discovered the largest prime number known to date.

![gettyimages-478186903-1200x800.jpg](https://steemitimages.com/DQmWrr61ooy69QGchZfvj4upftPd4T8zCzsYHgwakVdW3B5/gettyimages-478186903-1200x800.jpg)

In it, 23,249,425 digits is enough to fill a book of 9,000 pages.
For comparison: the number of atoms in the entire observable universe is estimated as a number with not more than a hundred signs.

<strong>Security of prime numbers</strong>

![igra-trenazhjor-chisla.jpg](https://steemitimages.com/DQmdSRmDZZB4gekKwUgMswQCtqUuajADFHMXspB4iMNksx2/igra-trenazhjor-chisla.jpg)

One of the most common applications of prime numbers is the RSA encryption system. In 1978, Ronald Rivesti, Adi Shamir and Leonard Adleman took as their basis the simplest known facts about numbers and created the RSA.

<code>The famous British mathematician Godfrey Harold Hardy said:</code>

> Pure mathematics as a whole is much more useful than it is applied. The technique is useful to it, and mathematical techniques are taught for the most part in pure mathematics.

<em>Whether giant prime numbers become useful, incomprehensible.</em>