|Cardinal||one hundred four|
(one hundred fourth)
|Factorization||23 × 13|
|Divisors||1, 2, 4, 8, 13, 26, 52, 104|
104 is a primitive semiperfect number and a composite number, with its divisors being 1, 2, 4, 8, 13, 26, 52 and 104. As it has 8 divisors total, and 8 is one of those divisors, 104 is a refactorable number. The distinct prime factors of 104 add up to 15, and so do the ones of 105, hence the two numbers form a Ruth-Aaron pair under the first definition.
In other fields
104 is also:
- The number of Corinthian columns in the Temple of Olympian Zeus, the largest temple ever built in Greece.
- The number of guns on Admiral Horatio Nelson's flagship HMS Victory.
- The number of keys on a standard Windows keyboard.
- The number of Symphonies written by Joseph Haydn upon which numbers are agreed (though in fact, he wrote more: see list of symphonies by Joseph Haydn).
- Cent Quatre, an arts centre in Paris.
- Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133
- "Sloane's A006036 : Primitive pseudoperfect numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27.