Question

quais são os numeros primos de 10 a 100 que invertidos continuam sendo primos

Answer 1

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

Answer 2

11⇒11
13⇒31
17⇒71
31⇒13
37⇒73
71⇒17
73⇒37
79⇒97
97⇒79