293

293 is the integer that follows 292 and precedes 294. In mathematics, 293 is a prime number. It is the 62nd prime. It is odd, not divisible by 2, 3, or 5. Its digits sum to 14. It can be expressed as the sum of two squares: 293 = 17^2 + 8^2. In base 2 it is 100100101. In Roman numerals it is CCXCIII.

As a calendar year, AD 293 is notable for the Tetrarchy system introduced by the Roman emperors Diocletian and Maximian. In that year Diocletian and Maximian appointed Galerius and Constantius Chlorus as Caesars, establishing the four-fold division of imperial authority and a broader administrative reform that shaped late Roman governance for several decades.

Beyond mathematics and chronology, 293 appears as an identifying number in various contexts, such as catalogs, routes, or product codes. These uses are contextual and do not convey a single intrinsic meaning of the number itself.