+"123f" typically signifies a [floating-point](/wiki/Floating-point) literal in various programming languages. This [value](/wiki/Value) is a single-precision number, often used for efficiency where less precision is acceptable. It distinctly specifies a data type within code.
+## See also
+- [Integer](/wiki/Integer)
+- [Data Type](/wiki/Data_Type)
+- [Literal](/wiki/Literal)
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