1) 6 = 2 * 3
8 = 2 * 2 * 2
НОК (6; 8) = 2 * 2 * 2 * 3 = 24
2) 12 = 2 * 2 * 3
16 = 2 * 2 * 2 * 2
НОК (12; 16) = 2 * 2 * 2 * 2 * 3 = 48
3) 72 = 2 * 2 * 2 * 3 * 3
90 = 2 * 3 * 3 * 5
НОК (72; 90) = 2 * 3 * 3 * 5 * 2 * 2 = 360
4) 396 = 2 * 2 * 3 * 3 * 11
180 = 2 * 2 * 3 * 3 * 5
НОК (396; 180) = 2 * 2 * 3 * 3 * 11 * 5 = 1980
5) 34 = 2 * 17
51 = 3 * 17
68 = 2 * 2 * 17
НОК (34; 51; 68) = 2 * 2 * 17 * 3= 204
6) 168 = 2 * 2 * 2 * 3 * 7
231 = 3 * 7 * 11
60 = 2 * 2 * 3 * 5
НОК (168; 231; 60) = 3 * 7 * 11 * 2 * 2 * 2 * 5= 9 240