Last Digit In A Huge Product

Find the last digit of the number below.

\[ (2^{2^0} + 1) ( 2^{2^1} +1 ) ( 2^{2^2} + 1)(2^{2^3} + 1) \cdots (2^{2^{1024}} + 1 ) \]

×

Problem Loading...

Note Loading...

Set Loading...