5x7

Five by seven (5×7) is a notation used to indicate either a multiplication or a two‑dimensional dimension. In arithmetic, 5×7 equals 35. The numbers 5 and 7 are both prime, and their product is 35, with factors 1, 5, 7, and 35.

As a measurement, five by seven is read “five by seven” and is commonly seen in print sizes. A 5×7 inch print measures 5 inches by 7 inches (about 127 by 178 millimeters). This size is widely used for portrait photographs, small picture frames, and greeting cards, and it is a standard reference in photography and publishing.

In geometry, a rectangle with sides of length 5 and 7 has an area of 35 square units and a perimeter of 24 units. A 5×7 grid or layout contains 35 cells, and such dimensions are often used for seating plans, bingo cards, or other grid-based designs.

In digital typography and display technology, 5×7 refers to a dot matrix format in which characters are formed from a grid of 5 columns by 7 rows of dots. This 5×7 dot matrix is a common basis for simple LED displays and widely used in retro-style fonts.

Overall, 5×7 serves as a versatile descriptor in mathematics, photography, design, and digital display, spanning both numeric and physical dimensions.