+7 is a [Natural Number](/wiki/Natural_Number) that stands uniquely as the fourth [Prime Number](/wiki/Prime_Number). It often appears across cultures and beliefs, symbolizing completion, luck, or perfection in various contexts.
+## See also
+- [Number Theory](/wiki/Number_Theory)
+- [Symbolism](/wiki/Symbolism)
+- [Mathematics](/wiki/Mathematics)
... 1 more lines