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## The Number 18
The number 18 is a composite number, meaning it has factors other than 1 and itself. Its factors are 1, 2, 3, 6, 9, and 18.
* **Mathematics:** In mathematics, 18 is:
* An even number.
* A deficient number, as the sum of its proper divisors (1 + 2 + 3 + 6 + 9 = 21) is greater than itself.
* A semiprime, as it is the product of two prime numbers (2 x 3 x 3 = 18). Daha fazlası için [Asal Sayılar](https://www.nedemek.page/kavramlar/asal%20sayılar)'a göz atabilirsiniz.
* The sum of the first three powers of 2: 2¹ + 2² + 2³ = 2 + 4 + 8 = 14.
* **Age:** In many cultures, 18 is the age of majority, meaning it's the age when a person is legally considered an adult. This often comes with the right to vote, drink alcohol, and enter into contracts. Daha fazlası için [Reşit Olma Yaşı](https://www.nedemek.page/kavramlar/reşit%20olma%20yaşı)'na göz atabilirsiniz.
* **Cultural Significance:** The number 18 can have cultural or symbolic significance in various contexts, which varies depending on the cultural or religious background.