+The **deuce number** in the [octal system](/wiki/octal) is the integer value of two. In this base-8 numeric group, '2' is a fundamental [digit](/wiki/digit), representing the quantity two, just as it does in the decimal system.
+## See also
+- [Number Systems](/wiki/number_systems)
+- [Base](/wiki/base)
+- [Binary](/wiki/binary)
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