I'm looking to display answers in a pseudo-'prime factors' type of form eg I would like 2^n/4 to be coerced into 2^(n-2) for display. Factor(2^n/4) with factorflag true gives me 2^n/2^2 , is there a way of getting from there to 2^(n-2) ? Also 2^n*3^m/6 to go to 2^(n-1)*3^(m-1) etc. Regards Nigel