The number 2 is the integer that follows 1 and precedes 3. It is the smallest and the first prime number, meaning it can only be divided evenly by 1 and itself. In mathematics, 2 is often used in various operations, such as addition, subtraction, multiplication, and division. In everyday life, 2 represents pairs or duality, such as two shoes, two eyes, or two sides of a coin. It is also significant in various cultures and philosophies, symbolizing balance and harmony. The concept of duality is often explored in literature and art, emphasizing the relationship between opposing forces.