Remark on Z' limits at hadron colliders

Simple estimates for Z' exclusion limits and Z' model measurements in pp (p bar p) collisions are derived. Due to properties of the structure functions, the Z' exclusion limits depend only logarithmically on the Z' couplings to fermions and on the integrated luminosity. The predicted scaling of Z' exclusion limits and errors of Z' measurements with the c.m. energy and luminosity allows an easy extrapolation of existing analyses to other colliders.