+721 is a [Natural Number](/wiki/Natural_Number) that follows 720 and precedes 722. It is a composite number, notably the product of 7 and 103, holding various mathematical properties within [Numerical Systems](/wiki/Numerical_Systems).
+## See also
+- [Prime Numbers](/wiki/Prime_Numbers)
+- [Integer](/wiki/Integer)
+- [Number Theory](/wiki/Number_Theory)
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