11

This number is a prime.

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Golomb proved that n/π(n) takes on all integer values k > 1 at least once. Currently, k=11 is the only number known for which there is exactly one solution. [Caldwell]

Submitted: 2008-04-02 23:15:29;   Last Modified: 2008-04-03 02:41:53.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell