Kroupa et al. (1993) versus Chabrier (2003) initial mass functions, normalized such that the integral of the IMF between m = 0.1 and m = 100 equals one for each IMF (solid lines). The thick blue dashed line visualizes the Chabrier IMF when it is normalized such that the number of unevolved stars equals that number predicted by the Kroupa IMF. The thin black dashed line indicates the boundary between evolved and unevolved stars.