Tom Tromey writes: > I'm merging bignum to master now Thank you and everyone who helped! > [...] Please report any problems you find. It'd be nice if expt could be updated to handle bignums: (let ((googol (expt 10 100))) (= googol (apply #'* (make-list 100 10)))) ; => nil There's also a missing full stop in `(elisp) Integer Basics':