XCalc: Extended Calculator play online

Every computer and mobile comes with a pre-installed calculator app. Those calculators work just fine for normal users. But not all people are satisfied with only those regular functionalities. Those are the people XCalc is made for.

Here are the "extra" functionalities that XCalc offers (over the basic functionality of a calcualtor, of course).

- Find the n-th factorial
- Find all the factors of a number
- Find the n-th fibonacci number
- Find the greatest common divisor of a list of numbers
- Check if a number is a prime number
- Find the least common multiple of a list of numbers
- Find the prime factorization of a number
- Find the minimal ratio among a list of numbers