CCCXXXVII

CCCXXXVII is the Roman numeral for the number 337. It is formed by CCC (300) plus XXX (30) plus VII (7). In standard Roman numeral notation, this is an additive representation with no subtractive pair.

337 is a prime number. It has no prime factors other than 1 and itself.

In the year 337 CE, Constantine I died, and his sons Constantine II, Constans I, and Constantius II inherited the empire, beginning the Constantinian dynasty’s rule and the temporary division of imperial authority among three Caesars.

As a numeric symbol, CCCXXXVII is used in indexing, numbering, and historical dating where Roman numerals are preferred.