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Prime Numbers: A Computational Perspective by Crandall and Pomerance (2002) contained exactly 547 pages. In the Disney movie The Black Hole, the crew of the Palomino escape from the paralleluniverse Cygnus on Day 547. The number of primes between 6! and 7! is itself prime. 547 is the smallest odd prime to enumerate the primes between n! and (n + 1)! for any n. [Post] f(547!) + 547^3 is a prime number, where f(n!) gives the first n digits of n!. 547 is the smallest integer with this characteristic, and it is prime. [Zonta] The largest known prime number n such that the initial n digits in decimal portion of form a prime number. [Capelle]
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