It appears that Newlisp doesn't have least common multiple, right? If not, I propose the addition (with name lcm), at least because of symmetry: its "pair", gcd is already here - alone.
Btw, support for real numbers is impressive: beta, gamma, erf, Fourier's transformation. How these functions found their way to Newlisp?
I think Lutz is a statistician - he probably uses a lot of those functions more than anyone else...
I've often wanted to find a use for Fourier transforms...
Intelligence agency informed me that kosh implemented one lcm : //https://gist.github.com/897015
Always good to have connections with the intelligence agency ;-) Nice one!
Perhaps that could become a buildin? Just try to bribe Lutz with a Beer .. you never know ;-)