LXVIII

LXVIII is the Roman numeral representing the number 68. It is formed by L (50) plus X (10) plus VIII (8), totaling 68. The notation uses additive principles, so LXVIII contains no subtractive pairs.

Uses and context: In contexts that employ Roman numerals, LXVIII can appear in dates, as a chapter or volume number, or as a regnal or enumerative marker in lists. In modern writing, it may designate the 68th edition, item, or section in a sequence where Roman numerals are preferred for stylistic reasons. On clock faces, Roman numerals are typically limited to I–XII, so LXVIII would not appear there except in decorative or symbolic contexts.

Mathematics and properties: 68 is an even, composite integer. Its prime factorization is 2^2 × 17, and its positive divisors are 1, 2, 4, 17, 34, and 68. It is not a prime, triangular, or square number, but it features in various arithmetic and number-theory contexts as a representative even composite.

See also: Roman numerals; list of numbers in Roman numerals; LXVI, LVIII, LXIX as neighboring numerals in standard sequences. The numeral LXVIII is primarily of interest in discussions of Roman numeral notation, historical dating, and sequence labeling.