(1+1+1)! = 6

2+2+2 = 6

3+3-3 = 6

4+4-sqrt(4) = 6

5+5/5 = 6

6+6-6 = 6

7-7/7 = 6

rad(8)+rad(8)+rad(8) = 6

sqrt(9)+sqrt(9)-sqrt(9)=6

Notatii :
sqrt - radical de ordin 2;
rad - radical de ordin 3;
! - factorial