+**15c2** is a mathematical notation, often representing a [Combinatorial](/wiki/Combinatorial) selection. It signifies the unique ways to choose two elements from a larger set of fifteen, a fundamental concept in [Mathematics](/wiki/Mathematics). This operation reveals the count of possible pairings without regard to order.
+## See also
+- [Permutations](/wiki/Permutations)
+- [Binomial Coefficient](/wiki/Binomial_Coefficient)
+- [Set Theory](/wiki/Set_Theory)
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