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(another Prime Pages' Curiosity)
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+ The smallest prime p such that the next prime (1931) is a permutation of the digits of p. Andy Edwards introduced the name "Ormiston pairs" for these after his students at Ormiston College (in Queensland, Australia) manually inspected prime lists and found the first few cases. (An Ormiston k-tuple beginning with p is k consecutive primes each of whose digits are permutations of the digits of p.) [De Geest]

+ The number of letters in the chemical name for tryptophan synthetase A protein. [Byrne]

+ "The busy world, which does not hunt poets as collectors hunt for curios." F. Harrison (Webster's Revised Unabridged Dictionary, 1913)

+ The year in which mathematician Paul Erdős was born is an emirp. [Beedassy]

+ The first sedan-type automobile, a Hudson, went on display at the 13th National Automobile Show in New York in the emirp year 1913. [Green]

+ The smallest Honaker prime (emirp) whose prime index is Sophie Germain prime. [Bajpai]

+ The only Honaker emirp concatenated from two double-digit primes. [Loungrides]

(There are 3 curios for this number that have not yet been approved by an editor.)




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