ABCD is a 4 digit number where A,B,C and D are 4 distinctly separate digits between 1 and 9.
Using any of the following math operations and the digits A,B,C and D exactly once get the number ABCD.
Math operations allowed: + - x / ^ ! Square root and parenthesis. NO concatenation. There are at least 2 solutions. So answer with the use of the least number of math operations gets the tick.
Please no programming.