Jawabanmu

2014-09-10T08:52:03+07:00
2014-09-10T08:53:15+07:00
15 = 3 x 5
20 = 2^2 x 5
25 = 5^2
KPK = 2^2 x 3 x 5^2
       = 4 x 3 x 25
       = 290