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(another Prime Pages' Curiosity)
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+ The largest known number such that (17^n - 5^n)/12 is prime. [Russo]

+ The smallest prime (emirp) that is separated from the smallest prime by ten iterations of the Euler phi function: 1097 --> 1096 --> 544 --> 256 --> 128 --> 64 --> 32 --> 16 --> 8 --> 4 --> 2. [Beedassy]

+ The smallest balanced emirp such that its nearest primes above and below, i.e., 1091 and 1103, are also emirps. [Silva]

(There are 6 curios for this number that have not yet been approved by an editor.)




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