+**15** is the [natural number](/wiki/Natural_number) succeeding 14 and preceding 16. As a [composite number](/wiki/Composite_number), it marks a point of [growth](/wiki/Growth) and transition, often appearing in measures of time and human age.
+## See also
+- [Number](/wiki/Number)
+- [Integer](/wiki/Integer)
+- [Triangular number](/wiki/Triangular_number)
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