If these are the options the 2 is the answer as there are not infinite solutions and I have found two solutions . x^3-y^3 = -11^3 now -11^3 can be broken into 2 integer factors in these ways -121 *11,-1331*1 -11*121,1331*-1 now check each case, such as let x-y = -11 x^2+xy+y^2 = 121 (0,11) and (-11,0) are two solutions