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PUZZLET 208


dePolignac Numbers

In 1849, the French mathematician dePolignac theorized that "every odd number is the sum of a prime and a power of 2."  For example, 91 = 59 + 25.

He claimed to have checked his postulation up to 3 million, but  he has since been proved wrong, and those numbers which run counter to his theorem are now called dePolignac Numbers.  The smallest such number is 127.

Can you find any other 3-digt dePolignac Numbers?



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Last Updated: January 10th, 2010.