(2+1)(2^2+1)(2^4+1)……(2^128+1)化简下
问题描述:
(2+1)(2^2+1)(2^4+1)……(2^128+1)化简下
答
(2+1)(2^2+1)(2^4+1)......(2^128+1)
=(2-1)(2+1)(2^2+1)(2^4+1)......(2^128+1)
=(2^-1)(2^2+1)(2^4+1)......(2^128+1)
=(2^4-1)(2^4+1)......(2^128+1)
=2^256-1