Semimajor axis distribution of ejected brown dwarf binaries at 1 and 100 Myr. If a brown dwarf binary is observed to have a semimajor axis larger than ∼300 AU then it must be a triple system with an unresolved component, or a former triple system in which the close pair merged. In that case the third body can be ejected to distances larger than 100,000 AU. These simulations do not include the effects of viscous interactions, which will tighten binaries, and bring the peak toward lower separations.