What is 18 and 22?

18

Eighteen is a number with a few interesting facets:

Mathematics: It's a composite number, meaning it has factors other than 1 and itself. Its factors are 1, 2, 3, 6, 9, and 18. It's also an even number. You can learn more about <a href="https://www.wikiwhat.page/kavramlar/Even%20Numbers">Even Numbers</a> here.
Age: In many cultures, 18 is the age of majority, meaning a person is legally considered an adult. This often grants the rights to vote, purchase alcohol and tobacco (depending on local laws), enter into contracts, and more. You can learn more about <a href="https://www.wikiwhat.page/kavramlar/Age%20of%20Majority">Age of Majority</a> here.
Cultural Significance: Depending on the culture, the number 18 may hold symbolic or religious significance. For example, in Judaism, the letters that spell "chai" (life) have a numerical value of 18.

Twenty-two is another number with its own unique characteristics:

Mathematics: Like 18, 22 is a composite and even number. Its factors are 1, 2, 11, and 22.
Science: Titanium has the atomic number 22. You can learn more about <a href="https://www.wikiwhat.page/kavramlar/Atomic%20Number">Atomic Number</a> here.
Popular Culture: The number 22 has been associated with various cultural references. For example, "Catch-22" is a satirical war novel by Joseph Heller, and the phrase has come to mean a paradoxical situation from which one cannot escape because of contradictory rules. You can learn more about <a href="https://www.wikiwhat.page/kavramlar/Paradox">Paradox</a> here.