  We report, for the first time, the dependence of the multiplicity of
different fragments on the system size employing a quantum molecular dynamics
model. This dependence is extracted from the simulations of symmetric
collisions of Ca+Ca, Ni+Ni, Nb+Nb, Xe+Xe, Er+Er, Au+Au and U+U at incident
energies between 50 A MeV and 1 A GeV. We find that the multiplicity of
different fragments scales with the size of the system which can be
parameterized by a simple power law.
