  We present preliminary results from our calculation of the low energy
constants (LECs) of the chiral effective theory for 3, 4 and 5 color QCD with
$N_f=2$ dynamical fermion flavors. We simulate with clover fermions over a
range of lattice couplings and quark masses. We observe the expected $N_c$
scaling for the LECs appropriate to the condensate $B$ and pseudoscalar decay
constant $F$. The range of quark masses over which leading order chiral
perturbation theory describes the data grows as $N_c$ rises.
