601

This number is a prime.

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+ The one hundredth positive integer that contains exactly one zero. [Gaydos]

+ 601 is the (10^n)-th prime that contains exactly n zeros, case n=1. The sequence begins 2, 601, 40099, 2009407, 100813007, 5726000003, 204000172007, ... . [Gaydos]

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