Algebraic Number Theory and Fermat's Last Theorem

Let a,b,c,n be positive whole numbers where n > 1c=a+bc^n =(a+b)^n = a^n + b^n + rem(a,b,n) by binomial expansionc^n = a^n + b^n iff rem(a,b,n)=0rem(a,b,n) >0c^n <> a^n + b^nQEDNow think about the equation of a circle... :)

Great book for beginners.