2. 3, 5, 8, 12(A), 17(B), 23(C), 30(D), 37(E), 47, 57, 68
A. 12
B. 17
C. 23
D. 30
E. 37
Jawaban: A. 68
3. 4, 9, 17, 28(A), 42(B), 59(C), 78(D), 102(E), 128, 157, 216
A. 28
B. 42
C. 59
D. 78
E. 102
Jawaban: D. 78
4. 122, 138,414, 426(A), 852(B), 1.290(C), 3.870(D), 3.882(E), 11.646, 11.658, 34.974