4×80

4×80 is a notation that appears in several contexts, and its meaning depends on the domain in which it is used. In arithmetic, it denotes the product of 4 and 80, which equals 320. The factors are 2^6 × 5, and the number 320 has various representations in different number bases.

Beyond pure multiplication, the a × b form is commonly used to express dimensions or configurations in technical fields. When used for measurements, it indicates size or layout, with a and b representing quantities of a given unit. For example, a description such as 4 × 80 could refer to a piece that is 4 units wide and 80 units long, with the actual units (inches, centimeters, millimeters, etc.) defined by the context. The same notation can appear in specifications for sheets, boards, fabrics, or cables, where it conveys an arrangement or proportion rather than a single computed value.

In product naming and technical catalogs, 4×80 may serve as a model or configuration code. It can designate a version characterized by four components, channels, or lines, or by an attribute associated with the number 80. Because contexts vary widely, the precise meaning of 4×80 should be inferred from accompanying units, descriptions, or the industry standard in which it appears.

See also: Multiplication, Dimension (mathematics), Notation, Technical specifications.