生命为什么精彩
幼苗
共回答了2个问题 举报
(2+1)(2^2+1)(2^4+1)(2^8+1)......(2^2048+1)
=(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)......(2^2048+1)/(2-1)
=(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)......(2^2048+1)
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)......(2^2048+1)
=(2^4-1)(2^4+1)(2^8+1),,,,,,(2^2048+1)
=(2^2048 -1)(2^2048+1)
=2^4096 -1
1年前
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