1913

This number is a prime.

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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]

Submitted: 2001-12-19 11:49:23;   Last Modified: 2008-08-10 19:28:29.
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