139

This number is a prime.

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The largest prime, less than a googol, formed by concatenating in ascending order the first n powers of 3 (n=3). Note that for n=2 we take the smallest such prime (emirp). [Loungrides]

Submitted: 2009-06-28 21:55:25;   Last Modified: 2009-06-29 06:37:56.
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