Question 142348
x^a-x^b=x^b[x^(a-b)-1] __ x^(a-b)-1=z/(x^b)


x^b should be the highest power of x that evenly divides into z


2^a - 2^b = 32512 __ 2^8(2^(15-8)-1)=32512 __ 2^7-1=127 __ 2^7=128


3^a - 3^b = 6318 __ 3^5(3^(8-5)-1)=6318 __ 3^3-1=26 __ 3^3=27