The integrality of the Kontsevich integral and perturbative invariants is
discussed. We show that the denominator of the degree n part of the
Kontsevich integral of any knot or link is a divisor of (2!3!...n!)4(n+1)!.
We also show that the denominator of of the degree n part of the universal
perturbative invariant of homology 3-spheres is not divisible by any prime
greater than 2n+1.Comment: 27 pages, LaTeX with graphics packag