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18158961567721 (another Prime Pages' Curiosity) |
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18158961567721 = 13 * 373 * 11173 * 335173 is a Zeisel
Number because its four prime factors are consecutive
elements of the linear recurrence prime(i+1) = 30*prime(i)
- 17. Curiously, it is also an emirp, since 12776516985181
is prime. The digital sum 67 is prime. [Post]
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