Ta có:100 = 22 .52 ; 150 = 2.3.52 ;125 = 53
ƯCLN(100;150;125) = 52
BCNN(100;150;125) = 22.3.53 = 1500
ƯC(100,150,125) = 1;5;52
BC(100,150,125) = 0; 1500; 3000; ......
a) Ta có:100 = 22 .52 ; 150 = 2.3.52 ;125 = 53 ƯCLN(100;150;125) = 52 = 25 BCNN(100;150;125) = 22.3.53 = 1500 b) ƯC(100;150;125) = Ư(25) = {1;5;25} BC(100;150;125) = B(1500) = {0;1500;3000;4500;....}
ƯCLN(100,150,125)=25
BCNN(100,150,125)=1500