LXV

LXV is the Roman numeral for sixty-five. It is composed of the symbols L, X, and V, representing 50, 10, and 5 respectively. In additive notation, LXV equals 65, following the common structure of Roman numerals where smaller values placed after larger values are added.

Historically, LXV and other Roman numerals have been used for dates, monarchic regnal numbers, and enumerations in inscriptions, manuscripts, and architectural inscriptions. In modern typography, Roman numerals are often used for stylistic purposes, such as chapter headings, model designations, or to label sequences in ceremonial or commemorative contexts. While not common in everyday numbering, LXV can still appear in formal references or traditional displays.

Beyond numeration, LXV may function as an alphanumeric identifier in models, parts, or catalog entries. As a three-character sequence, LXV lacks a fixed meaning outside the system that assigns the label; its precise interpretation depends on context, such as a product line, a project code, or archival designation.

See also: Roman numerals; LX (60); LXV in numeral sequences.