Respostas

2014-06-27T00:39:10-03:00
2,3,4,6,8 e 9 .

Seis algarismos 
2014-06-27T00:39:28-03:00
6 algarismos, sendo eles: 2, 3, 4, 6, 8 e 9

Espero ajudar (: