Saturn
Saturn, it has at least 18 moons.
It takes at least 3 satellites.
War of the Satellites was created on 1958-05-18.
Saturn has more than 60 moons or natural satellites.
Of the eight planets in our solar system, only Mercury and Venus have no known satellites. Furthermore, Pluto has at least four of them.
A minimum of 4 satellites is needed to obtain a full GPS signal. These satellites are used to triangulate your position accurately on Earth.
If by planetary satellites you mean Moons, that would be Jupiter with at least 63 confirmed moons - possibly more!
Nearly 6750 satellites are revolving around our earth till now(18/02/2013)
Pluto has at least three moons; Charon, Nix, and Hydra.
The least composite multiple of 18 is 18, itself.
ku-
6 is a factor of 18, so the least common multiple is 18.