Similarly , in hexadecimal ( base - 16 ) , full spaces are usually used to group digits into twos , making each group correspond to a byte .
Alternatively , binary digits may be grouped by threes , corresponding to an octal digit .
In hexadecimal ( base - 16 ) , full spaces are usually used to group digits into twos , making each group correspond to a byte .
Alternatively , binary digits may be grouped by threes , corresponding to an octal digit .