CCCLVI

CCCLVI is the Roman numeral for the number 356. It is formed with the symbols C, L, V, and I using additive notation: CCC (three hundreds) plus L (fifty) plus VI (six). The arrangement follows a descending order of value, and no subtractive notation is used in this representation.

In historical dating, CCCLVI commonly denotes the year AD 356 or 356 CE. Roman numerals appear on inscriptions, coins, manuscripts, and other historical sources to label years, chapters, or items, preserving classical notation in many contexts.

As a standalone number, 356 is even and composite. Its prime factorization is 2^2 × 89, with 89 being a prime number. This places 356 in the 300s range of integers and makes it divisible by 1, 2, 4, 89, 178, and 356.

The term CCCLVI is primarily used in contexts involving Roman numerals, such as historical study, numismatics, or typography, rather than in everyday modern arithmetic. It serves as an example of how numbers are rendered in the ancient numeral system and in discussions of classical conventions.