Пошаговое объяснение:
1)
28 =2 × 2 × 7
35 = 5 × 7
70 = 2 × 5 × 7
НОК ( 28; 35; 70) = 2 × 2 × 5 × 7 = 140
2) 18, 24 и 27;
18 = 2 × 3 × 3
24 = 2 × 2 ×2 × 3
27 = 3 × 3 × 3
НОК ( 18; 24; 27) = 2 × 2 ×2 × 3 × 3 × 3 = 216
3) 36, 54 и 81,
36 = 2 × 2 × 3 × 3
54 = 2 × 3 × 3 × 3
81 = 3 × 3 × 3 × 3
НОК (36, 54, 81,) = 2 × 2 × 3 × 3 × 3 × 3 = 324
4) 88, 132 и 264;
88 = 2 × 2 ×2 × 11
132 = 2 × 2 × 3 × 11
264 = 2 × 2 × 2 × 3 × 11
НОК (88, 132, 264) = 2 × 2 × 2 × 3 × 11 = 264
5) 25, 75 и 150;
25 = 5 × 5
75 = 3 × 5 × 5
150 = 2 × 3 × 5 × 5
НОК (25, 75, 150) = 2 × 3 × 5 × 5 = 150
6) 54, 90 и 135
54 = 2 × 3 × 3 × 3
90 = 2 × 3 × 3 × 5
135 = 3 × 3 × 3 × 5
НОК ( 54, 90, 135) = 2 × 3 × 3 × 3 × 5 = 270
