24=2^3*3
30=2*5*3
42=2*3*7
=> BCNN[24,30,42]=2^3*3*5*7=840
24 = 2^3 * 3
30 = 2 * 3 * 5
42 = 2 * 3 * 7
BCNN ( 24 , 30 , 42 ) = 2^3 * 3 * 5 * 7 = 840
Ta có :
\(24=2^3.3\)
\(30=2.3.5\)
\(42=2.3.7\)
\(BCNN\left(24;30;42\right)=2^3.3.5.7=840\)
Ta có:
24=2^3.3
30=2.3.5
42=2.3.7
=>BCNN(24;30;42)=2^3.3.5.7=840
24=3.23
30=3.2.5
42=3.2.7
BCNN(24,30,42)=3.23.5.7=840