171617
This number is a prime.
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The larger of two emirps formed from the concatenation of the same integral edges of an acute-angled isosceles Heronian triangle. The smaller such emirp, (for the same triangle), is 161717. [Loungrides]
Submitted: 2012-05-01 12:03:31; Last Modified: 2015-06-01 12:06:25.
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