137

This number is a prime.

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The smallest prime that can be represented as sum of products of n pairs of first consecutive odd numbers, (n=3), i.e., 1*3 + 5*7 + 9*11. Can you find the 2nd such prime? [Loungrides]

137 is the only 3-digit prime that divides all of the numbers of form aaaaabbaabbaaaaa. [Loungrides]