67
This number is a prime.
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| John Pilkins ©2003 |
67 = sqrt(9!/(9 * 9) + 9). [Poo Sung]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
67 = sqrt(9!/(9 * 9) + 9). [Poo Sung]