Tuliskan KPK dan FPB dari 1.8 dan 20 2.3,4,dan15

8 = 2³
20 = 2² x 5

KPK = 2³ x 5 = 40
FPB = 2² = 4

3 = 3
4 = 2²
15 = 3 x 5

KPK = 2² x 3 x 5 = 60
FPB = 1 (?)

*cmiiw

KPK 8,20 = 40 FPB = 4
KPK 3,4,15 = 60 FPB = -