2×1600

2×1600 is a notation indicating the multiplication of 2 by 1600. In pure arithmetic, the expression evaluates to 3200. This simple product is used in algebraic manipulations, unit conversions, and as a building block in larger calculations.

In track and field, 2×1600 metres denotes a relay event in which a team of two runners each covers a 1600-metre leg. The runners pass a baton at the end of each leg, and the total distance run by the team is 3200 metres. Because 1600 metres is close to a mile, the format is sometimes described informally as a two-by-mile. The 2×1600 relay is not a standard event in most major international championships, but it appears in some invitationals, youth meets, or school-level competitions as a test of speed endurance and teamwork.

In computing and electronics, 2×1600 can refer to using two components rated at 1600 in a particular specification, such as two memory modules operating at 1600 MT/s in a dual-channel DDR3/DDR4 configuration. Here 1600 denotes the data rate (for example, MT/s in memory terminology) and not a distance.

Because 2×1600 is context-dependent, its meaning varies across domains. In mathematics it is a numeric product; in sports it describes a two-leg relay distance; in computing it may describe a dual-component configuration with a 1600-rate specification.