3.
a) 8
b)60
c)5
d)25
e)9
f)12
g)7
h)85
i)1
4.
a = c.m.m.d.c.
a){1,13}
b){1,5,25}
c){1,2,3,4,6,9,12,18,36}
d){1,2,3,4,6,12}
e){1,2,4,8}
f) {1,13}
g) {1,13}
h){1,2,3,4,6,9,12,18,36}
