42 is an extremely interesting number to mathematicians, because of its many features. For example:
- It is the product of two consecutive integers (6 and 7), making it a pronic number.
- It is the second sphenic number, the product of three distinct primary numbers.
- It is an abundant number, the sum of its proper divisors is greater than the number itself.
There are at least a dozen more features of interest to number theory enthusiasts.
Appearance in literature[change | change source]
The number makes regular appearances in Lewis Carroll's writings, such as in The Hunting of the Snark. Rule Forty-two in Alice's Adventures in Wonderland is "All persons more than a mile high to leave the court". Charles Dodgson was a mathematician.