a) Nr. prime intre 16 si 25 sunt: 17, 19, 23.
a\b=17\17
a\b=17\19
a\b=17\23
a\b=17\23
a\b=19\17
a\b=19\19
a\b=19\23
a\b=23\17
a\b=23\19
a\b=23\23
b)a=3, 5, 7,
b=3, 6, 9
a\b=3\3
a\b=3\6
a\b=3\9
a\b=5\3
a\b=5\6
a\b=5\9
a\b=7\3
a\b=7\6
a\b=7\9
c)a=1, 2, 3.
b=4, 5.
a\b=1\4
a\b=1\5
a\b=2\4
a\b=2\5
a\b=3\4
a\b=3\5
Succes!