悠悠鱼儿游
幼苗
共回答了7个问题 举报
(2+1)*(2^2+1)*(2^4+1)*(2^8+1)*(2^16+1)*(2^32+1)
=(2^2-1)*(2^2+1)*(2^4+1)*(2^8+1)*(2^16+1)*(2^32+1)
=(2^4-1)*(2^4+1)*(2^8+1)*(2^16+1)*(2^32+1)
=(2^8-1)*(2^8+1)*(2^16+1)*(2^32+1)
=(2^16-1)*(2^16+1)*(2^32+1)
=(2^32-1)*(2^32+1)
=2^64-1
1年前
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