Prime Curios!: 1913

1913
(another Prime Pages' Curiosity)

Curios:

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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 smallest emirp formed by concatenating two double-digit primes, ab, cd, such that cdab is also prime. [Loungrides]

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