12345...76543 (47-digits)

This number is a prime.

1234567 8987654321 2345678987 6543212345 6789876543

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The smallest esthetic 'Peak and Valley' prime using all positive digits only. [Loungrides]

Submitted: 2016-06-19 16:50:18; Last Modified: 2018-04-22 13:59:22.