Jawabanmu

2014-08-24T13:48:18+07:00
81 = 3 . 3 . 3.3
180 = 2² . 3² . 5
kpk = 2² . 3 . 3 .3 .3 . 5 = 1620
2014-08-24T13:49:18+07:00
Faktorisasi prima 81 = 3 × 3 × 3 × 3. Faktor prima 180 = 2 × 2 × 3 × 3 × 5. Kpk = 2 × 2 × 3 × 3 × 3 × 3 × 5 = 1620.