+109 is a [natural number](/wiki/natural_number) that comes after 108 and before 110. It is a [prime number](/wiki/prime_number), the 29th in the infinite sequence, and also the [atomic number](/wiki/atomic_number) for the element Meitnerium (Mt).
+## See also
+- [Integer](/wiki/integer)
+- [Number Theory](/wiki/number_theory)
+- [List of Primes](/wiki/list_of_primes)
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