# Count a factorial

A factorial number $$F$$ is any natural number for $$n>0$$ such that $$F=n!$$. So the first few factorial numbers are $$1, 2, 6, 24, 120, 720 ......$$. Implement an algorithm that takes two parameters (low, high) and returns the count of the factorial number in that range. How many factorial numbers are there between $$10^{13}$$ and $$10^{1000}$$

×

Problem Loading...

Note Loading...

Set Loading...