36×24

36×24 denotes a rectangle with sides of length 36 and 24 units. The product of these dimensions is 864, so the area is 864 square units when the units are taken as length units. If the dimensions are specified in millimeters, the frame area is 864 square millimeters.

The pair of numbers share a greatest common divisor of 12, so the ratio 36:24 simplifies to 3:2. The prime factorizations are 36 = 2^2 × 3^2 and 24 = 2^3 × 3, giving a combined product of 864 = 2^5 × 3^3.

In photography, 36×24 millimeters is the standard frame size for traditional 35mm film, corresponding to a 3:2 aspect ratio. This aspect ratio is common in many digital cameras and prints, influencing composition and cropping. The exact dimensions, when used in film or sensors, affect field of view and resolution per frame.

Outside imaging, 24×36 inches is a widely used poster size, and the same numerical values can appear in different unit contexts. The expression 36×24 thus commonly appears in discussions of geometry, printing, and photographic formats, with the same numbers representing different physical scales depending on the specified units.