What is the minimal number of “ones” needed to express the following 6 numbers:

6, 9, 18, 45, 60, 265.

You may use only the following symbols, each symbol up to three times and any quantity of brackets .

+ - / * ^ !
$ Sum of digits.
. Decimal point
Sqrt Square root.
and concatenation (of numbers only)

Sum up the total of ones and publish your answer.
Examples:
37=111/(1+1+1). Scores 6
48=((1+1+1)!)!! Scores 3

List your 6 formulas.

NB: The order of candidate numbers is not by the level of difficulty

6=3!      Score: 3.        <br>

Edited on July 15, 2021, 9:51 pm

Posted by Ady TZIDON on 2021-07-13 23:53:41