751

This number is a prime.

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The only known emirp n such that p = n*2^n-1 is a Woodall prime. [Loungrides]

The smallest emirp Honaker number corresponding to a Honaker prime, i.e., 5701. [Loungrides]

The smallest prime (emirp) that can be represented as the product of first n positive multiples of 5 plus 1, i.e., 5*10*15+1. [Loungrides]