What is 18 and 23?

Information about 18 and 23

Number Theory: 18 is a composite number. Its divisors are 1, 2, 3, 6, 9, and 18. It's an abundant number because the sum of its proper divisors (1 + 2 + 3 + 6 + 9 = 21) is greater than 18. More on https://www.wikiwhat.page/kavramlar/Number%20Theory
Mathematics: 18 can be expressed as the sum of consecutive primes: 5 + 7 + 6.
Age: In many cultures, 18 is the age of majority, meaning an individual is considered an adult with full legal rights and responsibilities. More on: https://www.wikiwhat.page/kavramlar/Age%20of%20Majority
Cultural significance: In Judaism, the Hebrew letters that spell the word "chai" (חי), meaning "life", have a numerical value of 18, making 18 a symbolic number associated with good luck and prosperity. More on: https://www.wikiwhat.page/kavramlar/Cultural%20significance

Number Theory: 23 is a prime number. It is the 9th prime number. More on: https://www.wikiwhat.page/kavramlar/Prime%20Number
Mathematics: 23 is a lucky number. More on https://www.wikiwhat.page/kavramlar/Lucky%20Number
The 23 Enigma: 23 is associated with the 23 enigma, a belief that the number 23 appears in many seemingly unrelated events and situations. More on: https://www.wikiwhat.page/kavramlar/23%20Enigma
Human Biology: Humans have 23 pairs of chromosomes. More on: https://www.wikiwhat.page/kavramlar/Human%20Biology