209

This number is a composite.

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The curve 42x2 - y2 = 209 contains the 'prime points' (3, 13), (5, 29), (7, 43), and (13, 83). [Buddenhagen]

Submitted: 2000-06-21 20:48:05;   Last Modified: 2008-01-30 17:28:00.
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