2015=1+4+36+484+529+961=1+2²+6²+22²+23²+31²
2015^2015=2015 * 2015^2014=2015* (2015^1007)²=
=(1+2²+6²+22²+23²+31²)(2015^1007)^2=
=(2015^1007)²+(2*2015^1007)²+(6*2015^1007)²+(22*2015^1007)²+(23*2015^1007)²+(31*2015^1007)²
mai este varianta :
2015=1+1+4+9+400+1600=1²+1²+2²+3²+20²+40²
si se poate inlocui
