What is 3 defined?

Here's some information about the number 3, formatted in Markdown with links:

The Number 3

The number 3 is a natural number following 2 and preceding 4. It is a prime number, the first odd prime number, and the second smallest prime number.

• Mathematics: 3 is fundamental in many mathematical concepts. It is the second Triangular Number and a Fibonacci Number. In geometry, the minimum number of points required to define a plane is three (forming a Triangle).

• Cultural Significance: The number 3 appears frequently in culture, mythology, and religion. Examples include: "third time's the charm," the Holy Trinity in Christianity, and many folktales utilize a rule of three.