9999999992999999999
This number is a prime.
999999999 2999999999
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The largest near-repdigit Palindromic Wing Prime (PWP) composed of digits d exactly d times in each wing. [Bajpai]
Submitted: 2012-07-20 16:18:37; Last Modified: 2018-04-04 11:07:19.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell