НОК(15,20)=5*3*4=60 (15=5*3, 20=5*4); НОК(48,72)=144 (48=2*2*2*2*3, 72=2*2*2*3*3), НОК (55,22)=5*2*11=110 (55=5*11, 22=2*11)
НОК(15,20)=5*3*4=60 (15=5*3, 20=5*4); НОК(48,72)=144 (48=2*2*2*2*3, 72=2*2*2*3*3), НОК (55,22)=5*2*11=110 (55=5*11, 22=2*11)