MATLAB: Doesn’t Matlab’s answer to factorial(100) equal Wolfram Alpha’s 100!

Question

When computing:

>> a = sprintf('%f',factorial(100))
a =
      '93326215443944102000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.000000'

However the number above does not equal 100!

why is this and how do I fix it?

Answer 1

factorial(sym(100))