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Number of nucleons scaling for elliptic flows of light charged particles (LCPs) (A ≤ 4) is studied for 40 and 200MeV/A197Au+197Au collisions at impact parameter of 6-12fm by the isospin-dependent quantum molecular dynamics model.The transverse-momentum-dependent ratios of v4/ v22 and v3 / (v1v2) are also found to be scaled for different LCPs from the two different energy collisions,and approximately equal to 0.5 and 0.55,respectively.A11 the above description can be seen as the result of nucleonic coalescence mechanism.