a) {1,2,3,4,5,6,7}
b) {0,2,3,4,5,6}
c) {1,2,3,4,5,6,7}
d) {1,2,3,4,5,6,7}
e) {2,3,5}
f) {4}
g) {6}
h) mult.vida
i) {0,4,6,2,3,5}
j) {4}
k){2,35}
l){0,4}