Answer
$111111$
Work Step by Step
$2|\underline{63}\ \ remainders$
$2|\underline{31}\ \ \ \ \ \ \ \ 1$
$2|\underline{15}\ \ \ \ \ \ \ \ \ 1$
$2|\underline7\ \ \ \ \ \ \ \ \ \ 1$
$2|\underline3\ \ \ \ \ \ \ \ \ \ 1$
$2|\underline1\ \ \ \ \ \ \ \ \ \ 1$
$\ \ \ \,0\ \ \ \ \ \ \ \ \ \ \ 1$ $\ \ \ \uparrow$ read digits up
