5399
This number is a prime.
5399 starts a sequence of five consecutive primes, i.e., 5399, 5407, 5413, 5417, 5419, such that the differences between the successive terms are respectively, 8, 6, 4, 2, that are successive terms of an arithmetic progression. [Loungrides]
(There is one curio for this number that has not yet been approved by an editor.)
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