面试流程优衣库的mit:初一数学题

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

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