By the way, multiply it by (1- 1/2), and then you can go on with the square difference formula.

( 1- 1/2)*( 1+ 1/2)*( 1+ 1/2^2)*( 1+ 1/2^4)*( 1+ 1/2^8)*( 1+ 1/2^ 16)=

( 1- 1/2^2)*( 1+ 1/2^2)*( 1+ 1/2^4)*( 1+ 1/2^8)*( 1+ 1/2^ 16)=( 1 - 1/2^4)* ( 1+ 1/2^4)*( 1+ 1/2^8)*( 1+ 1/2^ 16)=、、、、、= 1- 1/2^32

This is a matter of principle. The topic is not clear enough to give a specific answer. sorry