The number three is a natural number that follows two and precedes four. It is often represented by the numeral "3" and is the first odd prime number. In various cultures, three is considered a significant number, often symbolizing balance and harmony. In mathematics, three can be found in many concepts, such as triangles, which have three sides, and triples, which are groups of three items. Additionally, three is commonly used in everyday life, such as in three meals a day or three wishes in fairy tales.