A brushless motor energized by an M-phase alternating current having a stator with M.multidot.m (m is an even number) teeth, a coil wound around each of the teeth, and a rotor with (M+1).multidot.m permanent magnets. Since the coil is wound around each tooth, cancellation of magnetic fluxes produced by adjacent coils is minimized, which results in a greater efficiency of the motor. Since one coil corresponds to less than one magnet, irregularity on the induced voltage of the coils barely occurs, which results in a smoother output torque of the motor.