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The largest prime with a prime number of distinct prime digits. Note that the remaining prime digit 7 when prefixed (7523) or appended (5237) to it forms two other primes, the reversal of whose product is also a prime (15979393) with all of the odd digits. [Beedassy]

 

  Submitted: 2009-09-10 06:03:01;   Last Modified: 2009-09-10 20:44:42.



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