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  1. 18 (number) - Wikipedia

    In most countries, 18 is the age of majority, in which a minor becomes a legal adult. It is also the voting age, marriageable age, drinking age and smoking age in most countries, though …

  2. The number eighteen - Britannica

    Nov 28, 2025 · In Norse mythology Haldan has 18 sons and Odin knows 18 things. The number is sacred to the Sufi mystics who were known in the West as the whirling dervishes, and…

  3. Eighteen Fun Facts About The Number 18 - The Fact Site

    Aug 18, 2020 · At the age of 18, you are also considered a legal adult in most countries and are fully responsible for your actions past this point. Yet another cool fact about turning 18 is that …

  4. 18 Definition & Meaning - Merriam-Webster

    The meaning of EIGHTEEN is a number that is one more than seventeen.

  5. Number 18 - Curious Math Facts and Interesting Properties

    Explore the curious properties of number 18, an even composite number composed of two distinct primes. Includes mathematical info, prime factorization, divisors, bases and much more!

  6. About The Number 18 - Numeraly

    Explore the fascinating world of the number 18! Discover its meanings, facts, significance in math, science, religion, angel numbers, and its role in arts and literature.

  7. 18 (Number)

    The number 18 can be divided by 6 positive divisors (out of which 3 are even, and 3 are odd). The sum of these divisors (counting 18) is 39, the average is 6.5.

  8. Why Is 18 the Legal Age of Adulthood? - LegalClarity

    Aug 20, 2025 · While 18 is the age of adulthood for many purposes, the minimum legal drinking age remains 21 in all states. This higher age was largely established due to the National …

  9. 18 (number) Facts for Kids

    What is the Number 18? The number 18 is a natural number, meaning it's a counting number like 1, 2, 3, and so on. It's a positive number. In Roman numerals, the number 18 is written as …

  10. What Are Some Facts About the Number 18? - Reference.com

    May 19, 2025 · Some facts about the number 18 are that it is the only positive number that is equal to the sum of the digits multiplied by two, it is the atomic number of Argon and there are …