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A prime number embedded in the decimal expansion of . [Gardner] The squares and cubes of this prime, in reverse concatenation, are primes. [Silva] The sixdigit combination to Ellie's small office safe in the novel Contact by Carl Sagan. 314159 is a twin prime formed from three twodigit primes that are all members of twin prime pairs. [Silva] Vasilios Gardiakos points out in his "Document Alpha" that 314159 is an emirp. If A=3, B=1, C=4, D=1, E=5, F=9, ... , (using the digits of ), then 'THREE ONE FOUR ONE FIVE NINE' is prime. [Homewood]
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