What is 12?

12 is a number with several interesting properties and occurrences in mathematics, science, and culture. Here are some key aspects:

  • Mathematics: 12 is a composite number, having divisors 1, 2, 3, 4, 6, and 12. It's the smallest number with six divisors. It's also a highly composite number. It is a superfactorial of 3.

  • Units of Measurement: The number 12 is fundamental in many units of measurement. A common example is a dozen, representing a group of 12 items. There are also 12 inches in a foot.

  • Time: We use 12-hour clock systems where the day is divided into two 12-hour periods.

  • Religion/Mythology: 12 often appears in religious and mythological contexts. Examples include the twelve apostles of Jesus Christ and the twelve Olympian gods in Greek mythology.

  • Science: Magnesium has an atomic number of 12.