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The nth Prime Page will now find any of the first 2.623˙10^{15} primes or
π(x) for x up to 10^{17}. The smallest LucasCarmichael number. 399 = 7^{1} + 7^{2} + 7^{3} [Capelle] The smallest number, all of whose prime factors are of form 4n+3, whose sum of distinct prime factors is prime: 3*7*19 = 399; 3+7+19 = 29. [Post]
(There is one curio for this number that has not yet been approved by an editor.)
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