How many years did it take to successfully solve Fermat's last theorem?

Shiboge, a, b and c are not multiplied by n but raised at n -th power.

Shiboge, the superscript is missing for n. It should be "a to the power of n", etc., rather than "a multiplied by n". This is a formatting problem of this game. p.s. I still don't know what benefit the theorem brings, it how it can be applied usefully.

Unless I am missing something if I give a,b,&c the value of 1,2,&3 which are positive integer’s and n the value of 4 which is more than two this equation works out. an + bn = cn or 4+ 8 = 12.