1971179391939711791

This number is a prime.

197117939 1939711791

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A palindromic carousel (or merry-go-round) prime, i.e., for each digit 1->3->7->9->1: 9739937179717399379-> 1971179391939711791-> 3193391713171933913-> 7317713937393177137 ->. Found by Michael Bell, 2001. [Rivera]

Submitted: 2018-07-27 21:23:39; Last Modified: 2019-01-28 22:40:23.