计算:(2^2+1)(2^4+1)(2^8+1)……(2^32+1)
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计算:(2^2+1)(2^4+1)(2^8+1)……(2^32+1)
计算:(2^2+1)(2^4+1)(2^8+1)……(2^32+1)
计算:(2^2+1)(2^4+1)(2^8+1)……(2^32+1)
原式=(2-1)(2+1)(2²+1)(2^4+1)(2^8+1)……(2^32+1)/[(2-1)(2+1)] 反复运用平方差公式
=(2²-1)(2²+1)(2^4+1)(2^8+1)……(2^32+1)/3
=(2^4-1)(2^4+1)(2^8+1)……(2^32+1)/3
=(2^8-1)(2^8+1)……(2^32+1)/3
=(2^16-1)……(2^32+1)/3
=(2^64-1)/3
(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)/(2^2-1)=(2^4-1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)/(2^2-1)=(2^8-1)(2^8+1)(2^16+1)(2^32+1)/(2^2-1)……=(2^64-1)&#...
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(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)/(2^2-1)=(2^4-1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)/(2^2-1)=(2^8-1)(2^8+1)(2^16+1)(2^32+1)/(2^2-1)……=(2^64-1)/3原式=(2^64-1)+1=2^642^1=22^2=42^3=82^4=162^5=322^6=64……尾数2t46866四个一循环2^64中64是4的倍数swae尾数是6
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