In this article, Benford's law is considered as one of the interesting rules of probability theory. Contrary to the general idea that numbers are equally likely to be in different positions, this law shows that in observations from many natural phenomena, numbers are distributed in a special and non-uniform way in different positions. Benford's law provides a discrete and asymmetric distribution for the significant digits of observations from counts or from natural events and has a wide variety of applications in different fields.
