1) 3 = 1 * 3
6 = 1 * 2 * 3
НОК(3; 6) = 2 * 3 = 6
2) 28 = 1 * 2 * 2 * 7
9 = 1 * 3 * 3
НОК(28; 9) = 2 * 2 * 3 * 3 * 7 = 252
3) 15 = 1 * 3 * 5
20 = 1 * 2 * 2 * 5
НОК(15; 20) = 2 * 2 * 3 * 5 = 60
1) 3 = 1 * 3
6 = 1 * 2 * 3
НОК(3; 6) = 2 * 3 = 6
2) 28 = 1 * 2 * 2 * 7
9 = 1 * 3 * 3
НОК(28; 9) = 2 * 2 * 3 * 3 * 7 = 252
3) 15 = 1 * 3 * 5
20 = 1 * 2 * 2 * 5
НОК(15; 20) = 2 * 2 * 3 * 5 = 60