Hi,
The method suggested by flatulent is indeed an old method that exists for a long time. Indeed, you can have 1/3, 1/4 division. The only problem (critical) is bandwidth. For 1/2, probably you can get 10% bandwidth. For others, the bandwidth is minimal.
Still this class of method found its application in ultra high microwvae frequency where static division by flip-flop is not feasible.
For 1.7GHz, static division can do the job nicely. Thus, the best way is to use static division.
mwpro