14285...57143 (84-digits)

This number is a prime.

1428 5715714285
7142856999 9999857142 8571428585 7142857142 8557142855 7142857142 8572857143

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Phi(294,10)/7 is the smallest (and only known) zeroless pandigital unique prime. [Chandler]

Submitted: 2008-11-07 23:39:12; Last Modified: 2008-11-08 00:18:16.