30 = 2 × 3 × 5
124 = 2 la puterea 2 × 31
174 = 2 × 3× 21
500 = 2 la puterea 2 × 5 la puterea 5
1690 = 2 × 5 × 13 la puterea 2
144 = 2 la puterea 4 × 3 la puterea 2
1024 = 2 la puterea 10
320 = 2 la puterea 6 × 5
420 = 2 la puterea 2 × 3 ×5 × 7
7500 = 2 la puterea 2 × 3 ×5 la puterea 4
4000 = 2 la puterea 5 × 5 la puterea 3