What is the sum of 3+4+5?
Magic number 12
12 (twelve) is the natural number following 11 and preceding 13. The product of the first three factorials, twelve is a superior highly composite number, divisible by 2, 3, 4, and 6.
It is approximately the number of full lunations of the moon in a year, and the number of years for a full cycle of Jupiter, which was historically considered the brightest “wandering star”. It is central to many systems of timekeeping, including the Western calendar and units of time of day, and frequently appears in the world’s major religions.