23
This number is a prime.
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| Kristen Eller ©2002 |
A couple is two people, a prime. But the Guinness World
Record for most marriages (and divorces) is 23 by a woman
in Indiana. There is also a record for most renewal vows:
the prime 83. [Post]
There are 23 words in David Hilbert's statement on why he
didn't try to solve Fermat's last theorem: "Before
beginning I should put in three years of intensive study,
and I haven't that much time to squander on a probable
failure." Quoted in E. T. Bell Mathematics, Queen and
Servant of Science (New York 1951). [Post]
Largest known prime partial sum of number of Giuga
sequences of length n: 1 + 2 + 3 + 17. [Post]
The only known prime difference between the number of
semigroups of order n and the number of groups of order n,
for any integer n. For n = 3, there are 24 nonisomorphic
semigroups, and a unique (cyclic) group, so 24-1 = 23. [Post]