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Neeme Vaino (talk | contribs) |
Neeme Vaino (talk | contribs) |
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Example in hexadecimal format: <br>Let '''N''' be 1751<sub>16</sub>.<br>
The right digit of '''N''' is 1, from table, right digit of '''a''' can only be 1,7,9 or F.<br>
√1751<sub>16</sub> = 4E, so we test for '''a''' only 4F, 51, 57 and get result '''a² - N = 57<sub>16</sub><sup>2</sup> - 1751<sub>16</sub>''' as a perfect square. QEF <br><br>
Is this better than in the article? Got it clear now? Should this be in the article page?
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