an Eisenstein prime with no imaginary part and a real part of the form 3 n − 1.the 33rd prime number the next is 139, with which it comprises a twin prime, and thus 137 is a Chen prime.
an Eisenstein prime with no imaginary part and a real part of the form 3 n − 1.the 33rd prime number the next is 139, with which it comprises a twin prime, and thus 137 is a Chen prime.
