What is 5x7?

The numbers 5 and 7 are both prime numbers. In mathematics, 5x7 refers to the product of multiplying 5 by 7, which equals 35. In terms of size, a 5x7 measurement typically refers to a standard photo frame size, which is 5 inches in width and 7 inches in height. This size is commonly used for photographs and prints as it provides a good balance between visibility and space.