Originally Posted by
DGenBen
47 is a safe prime, a Thabit prime, a regular prime, a cluster prime, an isolated prime, a Ramanujan prime, and a Higgs prime.
47 is also a supersingular prime. 47 is the first integer after 46 and the last integer before 48. It is also the second integer after 45.
Things become a bit more fuzzy when about first, second, etc. I mean, dimension-41 tries to go 42, with the addition of 1, but, it ends up as 411 by not being able to reasonably add 1 to go any further; similarly with dimension-44 going to 42, by subtracting 1, but with the dimension-42 as the 43rd dimension, and, so, it ends up as 441.
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