A Brief Prime Curios! Glossary

absolute prime: a prime that remains prime for all permutations of its digits. E.g., 199, 919 and 991 are all prime. Goal: definitions balanced with curio info. almost-all-even-digits prime: a prime with all even digits except for one odd right-most digit. E.g., 666 · 10 + 1. almost-equi-pandigital prime: a prime with all digits equal in number, except for one particular digit. E.g., (10987654321234567890)421. alternate-digit prime: a prime that has alternating odd and even digits such as (1676)9481. beastly prime: a palindromic prime with 666 in the center, 0’s surrounding these digits, and 1 or 7 at the end. Note that a non-palindromic beastly prime begins with a 666, followed by 0’s, with either a 1 or 7 at the right end. E.g., (10 + 666) · 10 + 1. bemirp: (or bi-directional emirp) a prime that yields a different prime when turned upside down with reversals of both being two more different primes. E.g., 1061.