Question 503581
Reading from right-to-left (like arabic), the binary number 1001 can be read as:
{{{1X2^0}}}+{{{0X2^1}}}+{{{0X2^1}}}+{{{1X2^3}}}={{{9}}} in decimal.
The octal (base 8)equivalent is {{{highlight(11)}}} and this is deciphered as follows:
Group the digits of the binary number in groups of three starting from the right sides thus:
{{{highlight(1)highlight(001)}}} which is 11
In octal (base 8) the binary-to octal conversion looks like:
{{{000 = 0}}}
{{{001 = 1}}}
{{{010 = 2}}}
{{{011 = 3}}}
{{{100 = 4}}}
{{{101 = 5}}}
{{{110 = 6}}}
{{{111 = 7}}}
{{{1000 = 10}}}
{{{1001 = 11}}}
{{{1010 = 12}}}
{{{1011 = 13}}}