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74 (another Prime Pages' Curiosity) |
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Single Curio View: (Seek other curios for this number) 74 is the smallest number k such that there is no known prime of the form k * 2^n - 1. [Zucker]
Submitted: 2006-05-17 23:05:41; Last Modified: 2008-01-30 11:28:00.
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