115353757

This number is a prime.

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Smallest emirp such that 1+1+5^5+3^3+5^5+3^3+7^7+5^5+7^7 = 1656517 and 1+6^6+5^5+6^6+5^5+1+7^7 = 923107 are emirps. [Sariyar]

Submitted: 2020-06-14 22:20:13; Last Modified: 2020-06-14 22:21:44.