  We propose three implementations of the Gauss sum factorization schemes
discussed in part I of this series: (i) a two-photon transition in a
multi-level ladder system induced by a chirped laser pulse, (ii) a chirped
one-photon transition in a two-level atom with a periodically modulated excited
state, and (iii) a linearly chirped one-photon transition driven by a sequence
of ultrashort pulses. For each of these quantum systems we show that the
excitation probability amplitude is given by an appropriate Gauss sum. We
provide rules how to encode the number N to be factored in our system and how
to identify the factors of N in the fluorescence signal of the excited state.
