The page number can be different based on the required formatting specifications. For example, if the paper is single-spaced, then the paper will span only 2 1/2 pages.
Most courses require papers to be in a standard 12-point font, double-spaced and with 1-inch margins. The Modern Language Association and the American Psychology Association follow these guidelines.
Moreover, academic papers should include a header with the last name and page number in the upper right hand corner. Consult the instructor of the course to confirm which style the paper should be written in.Learn more about Writing