2131131137

This number is a prime.

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A ten-digit prime number formed by concatenating the last digit of the first prime after each multiple of ten under ten-squared: 02, 11, 23, 31, 41, 53, 61, 71, 83, 97. [Debeuret]

Submitted: 2010-09-24 14:50:29; Last Modified: 2010-09-24 18:32:08.