In arithmetic growth, one of the daughter cells continues to divide, whereas the other differentiates into maturity following mitotic cell division. The rate of growth is constant and increase in growth occurs in arithmetic progression, i.e., 1,2,3,4,5 and so on. It can also be represented by ${\mathrm{N}}_{\mathrm{t }}= {\mathrm{N}}_{\mathrm{0 }}+ \mathrm{r}\mathrm{t.}$