## Pandigital Primes

#### Problem

The digits 0 to 9 are written on ten pieces of card and, by arranging them into five blocks of two, it is possible to form five primes. For example,

0 | 5 | 2 | 3 | 4 | 7 | 6 | 1 | 8 | 9 |

How many different sets of five primes can you form this way?

Problem ID: 185 (01 Nov 2004) Difficulty: 3 Star