Primo Certificate for (10^3111-1)/3+4*10^1555

The palindrome wing prime (10^3111-1)/3+4*10^1555, listed here as a PRP, is certified prime. Certificate here.

Primo certificate for (7*(10^3315-1)/9)-2*10^1657

The palindrome wing prime, or near-repdigit palindrome prime
(7*(10^3315-1)/9)-2*10^1657, which is listed as a probable prime here, is indeed a prime number.

Primo certificate here.