1109
This number is a prime.
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The smallest invertible prime whose concatenated pair form
a strobogrammatic prime (11096011). The sequence begins
1109, 1699, 6689, 6691, 6991, ....
Submitted: 2009-10-12 02:17:37; Last Modified: 2009-10-12 02:18:22.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell