All Templates/lion animal, Leo, lion kind/Meme: "Вчрптък46 Is it true that only three primes, namely 5, 13 and 97, are representable as 2^k + 3^k for some natural k?"
Meme: "Вчрптък46 Is it true that only three primes, namely 5, 13 and 97, are representable as 2^k + 3^k for some natural k?"