What is Octal?
'''Octal''' system (also known as '''base 8''' or '''octonary'''), is a numeral system that uses the numerals 0 through 7. The system is similar to [[Binary numeral system|binary]] (base 2) and [[Hexadecimal numeral system|hexadecimal]] (base 16). Octal numerals are written using the number ''0'' before the numeral, for example, 004 or 01242. Octal numbers are also sometimes written with a small 8 to the lower right, as in 1242<sub>8</sub>. At one time, the octal system was used mainly for work with [[computer]]s. It provided an easier way to work with binary numbers. As computers changed from using 24-[[bit]] systems to 32- and 64-bit systems, hexadecimal replaced octal for most uses. Certain groups, for example, [[Native Americans]] using the [[Yuki tribe|Yuki]] [[language]] in [[California]] and the Pamean languages<ref>{{ Citation | last=Avelino | first=Heriberto | title=The typology of Pame number systems and the limits of Mesoamerica as a linguistic area | journal=Linguistic Typology | year=2006 | volume=10 | pages=41–60 | doi=10.1515/LINGTY.2006.002 | s2cid=20412558 | url=http://linguistics.berkeley.edu/~avelino/Avelino_2006.pdf }}</ref> in [[Mexico]], also use an octal numbering system. They do this because when they count, they use the spaces between their [[finger]]s instead of counting the actual fingers. ==Octal system== the octal system has no letters of the alphabet {| | {| class=wikitable !Octal!!Binary |- | 1|| 001 |- |2||010 |- |3||011 |- |4||100 |- |5||101 |- |6||110 |- |7||111 |- |10||001 000 |} | {| class=wikitable !Octal!!Binary |- | 11|| 001 001 |- |12||001 010 |- |36||011 110 |- |45||100 101 |- |53||101 011 |- |64||110 100 |- |100||001 000 000 |- |357||011 101 111 |} |valign=top| {| class=wikitable ! Binary!!colspan=4|Groupings!!Octal |- align=right |11|||||| ||011||3 |- align=right |010111|| || || 010||111||27 |- align=right |101000110|| ||101 || 000||110||506 |- align=right |01011010101||001||011||010||101||1325 |} |} ==Octal and decimal== In the [[Decimal numeral system|de