Exponential form is a way to express numbers using a base raised to a power. In this format, a number is written as a^b, where a is the base and b is the exponent. The exponent indicates how many times the base is multiplied by itself. For example, 2^3 equals 2 × 2 × 2, which equals 8. Exponential form is useful in various fields, including mathematics, science, and finance. It simplifies calculations involving large numbers and helps in understanding concepts like growth rates and decay processes. This notation also plays a crucial role in algebra and calculus.