793 is a natural number that comes after 792 and before 794. It is an odd composite number with prime factorization 13 × 61, and its digits sum to 19. In Roman numerals, 793 is written as DCCXCIII. The year 793 CE is notable in early medieval history for Viking activity in Britain. The Anglo-Saxon Chronicle records a raid on Lindisfarne in that year, an event often cited as the start of the Viking Age in Europe.