A prímszám is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In other words, a prime number has exactly two distinct positive divisors: 1 and itself. Examples of prime numbers include 2, 3, 5, and 7. Prime numbers play a crucial role in various fields, especially in mathematics and cryptography. They are used in algorithms for securing digital communications and in number theory, where they help in understanding the properties of numbers and their relationships.