40×23

40×23 denotes the product of the integers 40 and 23, which equals 920. It can be calculated as 40×23 = 40×20 + 40×3 = 800 + 120 = 920. In prime factor form, 40 = 2^3 × 5 and 23 is prime, so 40×23 = 2^3 × 5 × 23 = 920. The numbers 40 and 23 are relatively prime (gcd(40,23) = 1), and their least common multiple is 920.

As a dimension, 40×23 is commonly written as “40 by 23,” used to describe rectangles, grids, or arrays. For example, a rectangle with sides measuring 40 units by 23 units has an area of 920 square units. In computing or mathematics, 40×23 can refer to an array or matrix shape, such as a grid with 40 rows and 23 columns.

In linear algebra, a matrix of size 40×23 has 40 rows and 23 columns; multiplying it on the right by a matrix of size 23×n yields a 40×n matrix, provided the inner dimensions match. The product 40×23 frequently appears in problems involving area, tiling, sampling grids, or dimensional descriptions, but it has no special constant meaning beyond the computed value and its geometric or algebraic interpretations.

Overall, 40×23 is primarily recognized for its arithmetic value (920) and its use as a dimension in various practical contexts.