3(2²+1)(2^4+1)(2^8+1)(2^16+1

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3(2²+1)(2^4+1)(2^8+1)(2^16+1
3(2²+1)(2^4+1)(2^8+1)(2^16+1

3(2²+1)(2^4+1)(2^8+1)(2^16+1
3(2²+1)(2^4+1)(2^8+1)(2^16+1)
=(2²-1)(2²+1)(2^4+1)(2^8+1)(2^16+1)
=(2^4-1)(2^4+1)(2^8+1)(2^16+1)
=(2^8-1)(2^8+1)(2^16+1)
=(2^16-1)(2^16+1)
=2^32-1

3(2²+1)(2^4+1)(2^8+1)(2^16+1=[2^32-1]/[2²-1]=2^32-1

分子分母都乘以2²-1,则分子可以连续使用平方差公式,原式=[2^32-1]/[2²-1]=2^32-1