1)
10 = 3+7;
12 = 5+7;
18 = 5 + 13;
24 = 11 + 13;
30 = 13 + 17;
42 = 29 + 13;
68 = 31 + 37.
2)
22 = 2•11;
35 = 5•7;
77 = 7•11;
65 = 5•13;
69 = 3•23;
95 = 5•19.
1)
10 = 3+7;
12 = 5+7;
18 = 5 + 13;
24 = 11 + 13;
30 = 13 + 17;
42 = 29 + 13;
68 = 31 + 37.
2)
22 = 2•11;
35 = 5•7;
77 = 7•11;
65 = 5•13;
69 = 3•23;
95 = 5•19.