If a number nnn is prime and n>5n > 5n>5, what is the last digit of nnn?
1,3,7,91, 3, 7, 91,3,7,9
0,2,4,6,80, 2, 4, 6, 80,2,4,6,8
555
1,2,3,41, 2, 3, 41,2,3,4