tolong di jawab 1-4 pake caranya

1)225=3x3x5x5
375=3x5x5x5
FPB=3x5x5
=75
KPK=3x3x5x5x5
=1.125

2)48=2x2x2x2x3
84=2x2x3x7
1.087=

3)24=2x2x2x3
30=2x3x5
KPK=2x2x2x3x5
=120
FPB=2x3
=6

4)10=2x5
40=2x2x2x5
90=2x3x3x5
KPK=2x2x2x3x3x5
=360
FPB=2x5
=10
-Maaf ya kalo no.2 saya kurang tahu :))