7

This number is a prime.

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The number of strobogrammatic capital letters of the English alphabet (H, I, N, O, S, X, Z). The word strobogrammatic begins with S, the only strobogrammatic letter with a prime index. [Capelle]

Submitted: 2009-10-16 10:39:10;   Last Modified: 2009-10-18 09:40:52.
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