CCCXXVI

CCCXXVI is the Roman numeral for the integer 326. It is formed by CCC (300) plus XX (20) plus VI (6), following the additive convention used in standard Roman numerals.

In mathematics, 326 is an even, composite number. Its prime factorization is 2 × 163, with divisors 1, 2, 163, and 326. It is not a perfect square or a perfect cube.

As a calendar designation, CCCXXVI can denote the year 326 CE in the Julian calendar or the year 326 BCE in the pre-Julian era. In historical contexts, the numeral appears in inscriptions and chronicles to indicate years within the ancient and classical periods.

Beyond its use as a numeric symbol, CCCXXVI may appear in various cataloging, enumerative, or designational contexts where Roman numerals are employed. This includes structures such as chapter numbers, volume or issue identifiers, and other ordinal or sequence markings where a compact Roman form is preferred.