The largest two-digit prime number is 97. Prime numbers are natural numbers greater than 1 that have no positive divisors other than 1 and themselves. The two-digit prime numbers range from 11 to 97, with 97 being the highest. It is often considered special due to its status as the largest prime within the set of two-digit numbers. Understanding prime numbers is fundamental in mathematics, particularly in fields such as number theory and cryptography. The significance of prime numbers extends into various applications, including computer algorithms and data security.