20=22.5
75=52.3
342=2.32.19
=>BCNN(20;75;342)=22.32.52 .19=17100
20 = 2^2 . 5 ; 75 = 3 . 5^5 ; 342 = BCNN 20 75 342 = 17100
Ta có :
20=22.5
75=3.52
342=2.32.19
=> BCNN (20;75;342)=22.32.52.19=17100
20=22.5 75=3.52
342=2.32.19
=>BCNN(20,75,342)=2.2.3.3.19..5.5=17100