This number is a prime.

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The smallest Honaker prime that can be expressed as the sum of the squares of two distinct triangular numbers, i.e., (1^2 + 66^2). Curiously, 66 is a palindromic triangular number having palindromic index. [Bajpai]

Submitted: 2018-10-16 02:48:33;   Last Modified: 2018-10-16 02:54:29.
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