Trivial modification of Palindromic primes task.
say "{+$_} matching numbers:\n{.batch(10)».fmt('%3X').join: "\n"}"
given (^500).grep: { .is-prime and .base(16) eq .base(16).flip };
13 matching numbers:
2 3 5 7 B D 11 101 151 161
191 1B1 1C1