## Reverse Prime

#### Problem

The number 13 is prime and so too is its reverse, 31. How many two digit primes can you find for which their reverse is also prime?

Problem ID: 156 (Mar 2004) Difficulty: 1 Star

The number 13 is prime and so too is its reverse, 31. How many two digit primes can you find for which their reverse is also prime?

Problem ID: 156 (Mar 2004) Difficulty: 1 Star