kelipatan persekutuan terkecil (kpk) dari 8,20,24 adalah....

8
/\
2 4
..../\
...2 2

20
/\
2 10
..../\
...2 5

24
/\
2 12
..../\
...2 6
....../\
.....2 3

8 = 2^3
20 = 2^2 x 5
24 = 2^3 x 3
KPK = 2^3 x 3 x 5 = 120