А. Используя разложение на простые множители:
№ | Число a | Число b | Число c | НОД (a; b; c) |
---|---|---|---|---|
1 | 2 × 3 × 3 × 7 | 2 × 2 × 3 × 3 × 5 | 2 × 2 × 2 × 3 × 3 | 2 × 3 × 3 = 18 |
2 | 2 × 2 × 5 × 5 | 2 × 3 × 5 × 7 | 2 × 3 × 3 × 5 × 5 | 2 × 5 = 10 |
3 | 3 × 3 × 11 | 2 × 3 × 5 | 3 × 3 × 3 × 7 | 3 |
4 | 2 × 2 × 2 × 2 | 2 × 2 × 7 | 2 × 2 × 2 × 11 | 2 × 2 = 4 |
5 | 5 × 5 × 5 × 7 | 2 × 5 × 5 × 7 | 2 × 3 × 3 × 7 | 7 |
6 | 2 × 2 × 3 × 3 × 7 | 5 × 5 × 7 | 2 × 2 × 3 | 1 |
7 | 5 × 13 × 29 | 2 × 2 × 13 × 17 | 3 × 5 × 13 × 13 | 13 |
8 | 2 × 3 × 7 | 7 × 7 × 7 × 7 × 7 | 7 × 7 × 11 × 13 | 7 |
9 | 19 × 31 × 43 | 17 × 19 × 31 | 11 × 29 × 31 | 31 |
10 | 2 × 2 × 2 × 2 × 3 | 2 × 2 × 2 × 2 × 5 | 2 × 2 × 2 × 3 × 5 | 2 × 2 × 2 = 8 |
Б. Разложив данные числа на простые множители:
№ | Число a | Число b | Число c | НОД (a; b; c) |
---|---|---|---|---|
1 | 42 = 2 × 3 × 7 | 84 = 2 × 2 × 3 × 7 | 210 = 2 × 3 × 5 × 7 | 2 × 7 = 14 |
2 | 112 = 2 × 2 × 2 × 2 × 7 | 24 = 2 × 2 × 2 × 3 | 40 = 2 × 2 × 2 × 5 | 2 × 2 × 2 = 8 |
3 | 90 = 2 × 3 × 3 × 5 | 36 = 2 × 2 × 3 × 3 | 315 = 3 × 3 × 5 × 7 | 3 |