fpb dan kpk dari 40,60,72 dengan menggunakan cara II

40 = 2³ × 5
62 = 2 × 31
72 = 2³ × 3²

fpb = 2
kpk = 2³ × 3² × 5 × 31 = 11.160

40 = 2x2x2x5 = 2³ x 5
60 = 2x2x3x5= 2² x 3 x 5
72 = 2x2x2x3x3 = 2³ x 3²

FPB = 2² = 4
KPK = 2³ x 3² x5
= 8x9x5
= 360