Odpowiedź :
Zadanie 2
56 = 7 * 8 = 7 * 2 * 2 * 2
45 = 5 * 9 = 5 * 3 * 3
100 = 10 * 10 = 2 * 5 * 2 * 5
160 = 5 * 32 = 5 * 2 * 2 * 2 * 2 * 2
80 = 5 * 16 = 5 * 2 * 2 * 2 * 2
Zadanie 4
a) 84 = 2 * 42
84 = 2 * 2 * 21
84 = 2 * 2 * 3 * 7
b) 72 = 2 * 36
72 = 2 * 2 * 18
72 = 2 * 2 * 2 * 9
72 = 2 * 2 * 2 * 3 * 3
c) 294 = 2 * 147
294 = 2 * 3 * 49
294 = 2 * 3 * 7 * 7