Posted by Brad Paul on September 12, 2002 at 08:14:02:
In Reply to: 156 factorial posted by sil on September 11, 2002 at 16:32:40:
: could anyone give my an enormous approximation of 156 factorial
You can find an approximation for n! when n is large with
Sterling's approximation.
n! ~ e-nnnSqrt(2 pi n)
Also n! is related to the gamma function:
Gamma(n+1)=n!
See: http://mathworld.wolfram.com/GammaFunction.html