MAGIC NUMBER

Please prepare your calculator, handphone, paper, etc. to follow this game :)
Now follow the instruction under it :

1. Choose one of number, you can choose a number that you want
2. Square it
3. Plus the result with the number that you choose
4. Divide it with the number that you choose
5. Plus it with 17
6. Minus it with the number that you choose
8. The last divide it with 6


i know the question ..
i think the number is ...


3

fitri amalia shinta siwi
xi ia 5/15