In this session: ----- In[1]:= f[n_] := If[n==1, 1, LCM[n,f[n-1]] ] In[2]:= f[11] Out[3]= 27720 In[4]:= g[n_] := f[n]^(1/n) In[5]:= g[11] 3/11 2/11 1/11 Out[5]= 2 3 385 In[6]:= h[n] := N[g[n], 10] In[7]:= h[11] Out[7]= h[11] In[8]:= N[g[11], 10] Out[8]= 2.534488315 ----- Why does In[7] fail to get the same output as In[8] ??? Is there no way to create a function that does the same thing as In[8] (for n in place of 11) ??? The idea was to show that lim LCM[1,...,n]^(1/n) = e n->oo None of my attempts to get g[n] to approach a numerical limit in Mma were successful. In fact, it gets seriously confused when I ask for N[g[10000]] Thanks, Dan