Point-free programming style

How do I write the factorial function in point-free?

fact n = foldr1 (*) [1..n]

Which is faster
add1 = 1 +
or
add1 x = 1 + x
???

>>44
There is a use for fast Factorial or some cryptography routine(with ROR SHL and similar opcodes) but you can't embed asm in Javascript or for that matter any high-level language.
Writing in C defeats the purpose since its just asm with syntactic sugar and standard libraries.