99999...99999 (49-digits)

This number is a prime.

999999999 8888888877 7777707777 7778888888 8999999999

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The largest-square congruent prime of order 7 containing three consecutive digits, 2*d times every digit d. [Loungrides]

Submitted: 2009-07-26 13:48:45; Last Modified: 2009-07-26 22:44:45.