2101243

This number is a prime.

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2101243 and 2101247 are the first cousin prime pair of the type p=2^n+2^R(n)-5 and q==2^n+2^R(n)-1, where R(n) is the reversal of n (case n=12). Note that the sums of their digits are another cousin prime pair. [Loungrides]

Submitted: 2009-10-30 05:34:21;   Last Modified: 2009-11-02 18:40:24.
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